Finding the Fourth Proportional to 1,145,669.14, 1,581,073.46 and 636,371.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,669.14 : 1,581,073.46 = 636,371.52 : x
2. Step 2: Convert to fraction form
   1,145,669.14/1,581,073.46 = 636,371.52/x
3. Step 3: Cross multiply
   1,145,669.14x = 1,581,073.46 × 636,371.52
4. Step 4: Simplify right side
   1,145,669.14x = 1,006,150,120,971.86
5. Step 5: Solve for x
   x = 1,006,150,120,971.86/1,145,669.14
6. Step 6: Final answer
   x = 878,220.50