Finding the Fourth Proportional to 825,476.82, 1,139,140.24 and 462,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   825,476.82 : 1,139,140.24 = 462,892.72 : x
2. Step 2: Convert to fraction form
   825,476.82/1,139,140.24 = 462,892.72/x
3. Step 3: Cross multiply
   825,476.82x = 1,139,140.24 × 462,892.72
4. Step 4: Simplify right side
   825,476.82x = 527,299,724,155.05
5. Step 5: Solve for x
   x = 527,299,724,155.05/825,476.82
6. Step 6: Final answer
   x = 638,781.99