Finding the Fourth Proportional to 1,026,839.82, 1,416,605.04 and 687,417.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,026,839.82 : 1,416,605.04 = 687,417.42 : x
2. Step 2: Convert to fraction form
   1,026,839.82/1,416,605.04 = 687,417.42/x
3. Step 3: Cross multiply
   1,026,839.82x = 1,416,605.04 × 687,417.42
4. Step 4: Simplify right side
   1,026,839.82x = 973,798,981,755.80
5. Step 5: Solve for x
   x = 973,798,981,755.80/1,026,839.82
6. Step 6: Final answer
   x = 948,345.56