Finding the Fourth Proportional to 825,476.83, 1,139,140.25 and 462,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   825,476.83 : 1,139,140.25 = 462,892.72 : x
2. Step 2: Convert to fraction form
   825,476.83/1,139,140.25 = 462,892.72/x
3. Step 3: Cross multiply
   825,476.83x = 1,139,140.25 × 462,892.72
4. Step 4: Simplify right side
   825,476.83x = 527,299,726,469.52
5. Step 5: Solve for x
   x = 527,299,726,469.52/825,476.83
6. Step 6: Final answer
   x = 638,781.99