Getting column value based on latest dates

I have a table with two columns of dates and associated sales values for different stores. So, a store can have multiple  date values  with sales values associated with them. 

Store#             Date1                  Date2                     SalesValue 

1                     02/21/2017         02/21/2017               22

1                     02/18/2017         02/18/2017               13 

2                    02/19/2017         02/19/2017                40 

2                     02/21/2017        02/21/2017                22

I would like to get the rows where the latest date1 is >= latest date2 and sales value = 22. 

So, I should end up with: 

1                     02/21/2017         02/21/2017               22

2                     02/21/2017        02/21/2017                22

I tried to do the following but it did not work: 

IF(MAXA(Date1) >= MAXA(Date2) && Sales = 22, "You got this", "You didnt) 

I am getting an error which says: A snigle value column Sales in table "Sales" cannot be determined. This can happen when a measure or formula refers to column that contains many values without specifying an aggregation such as min,max, etc. 

If I put a MAX around Sales, then it's grabbing the max values instead of 22.  How can I get those two columns?