Finding the Fourth Proportional to 981,053.55, 1,353,010.83 and 636,550.02

Step by Step Solution

1. Step 1: Write the proportion equation
   981,053.55 : 1,353,010.83 = 636,550.02 : x
2. Step 2: Convert to fraction form
   981,053.55/1,353,010.83 = 636,550.02/x
3. Step 3: Cross multiply
   981,053.55x = 1,353,010.83 × 636,550.02
4. Step 4: Simplify right side
   981,053.55x = 861,259,070,896.72
5. Step 5: Solve for x
   x = 861,259,070,896.72/981,053.55
6. Step 6: Final answer
   x = 877,892.01