Finding the Fourth Proportional to 825,645.72, 1,139,404.14 and 463,150.20

Step by Step Solution

1. Step 1: Write the proportion equation
   825,645.72 : 1,139,404.14 = 463,150.20 : x
2. Step 2: Convert to fraction form
   825,645.72/1,139,404.14 = 463,150.20/x
3. Step 3: Cross multiply
   825,645.72x = 1,139,404.14 × 463,150.20
4. Step 4: Simplify right side
   825,645.72x = 527,715,255,321.83
5. Step 5: Solve for x
   x = 527,715,255,321.83/825,645.72
6. Step 6: Final answer
   x = 639,154.59