Let's solve this problem step by step.
We are given that when 97,287 is added to a certain number, the sum is 1,028,390. We need to find the certain number.
1. Set up the equation based on the given information:
[tex]\[
\text{certain number} + 97,287 = 1,028,390
\][/tex]
2. To find the certain number, we need to isolate it on one side of the equation. We do this by subtracting 97,287 from both sides of the equation:
[tex]\[
\text{certain number} = 1,028,390 - 97,287
\][/tex]
3. Perform the subtraction to find the value of the certain number:
[tex]\[
1,028,390 - 97,287 = 931,103
\][/tex]
So, the certain number is 931,103.