Dear Friends

I would like to find the cell reference of total amount $ 3,385/-
which constituted from below three figures ( 1,128+1,234 + 1,023 ).
Can anybody help me how to find these through any formula or any other
means.


A B C D


1,200
1,128
1,800
1,900
1,234
1,700
1,023

Thanks fo tal in advance for guidence