Excel

[Osama_Fsthy]

hello everyone ,
can someone help me to solve this issue 
how to make  c1 = c2 and in the same time c1 +c3 = c4
so after Appling the equation the cells should be 
c1=1456 , c3=1284, c2 and c4 still the same 
I want to make this dynamically 

c1	740
c2	1456
c3	2000
c4	2740

thanks in advance 

[#2]

Hi @Osama_Fsthy 

in C1, put formula

=C2

in C3, put formula

=C4-C2