Finding the Fourth Proportional to 820,984.78, 1,132,947.24 and 458,414.35

Step by Step Solution

1. Step 1: Write the proportion equation
   820,984.78 : 1,132,947.24 = 458,414.35 : x
2. Step 2: Convert to fraction form
   820,984.78/1,132,947.24 = 458,414.35/x
3. Step 3: Cross multiply
   820,984.78x = 1,132,947.24 × 458,414.35
4. Step 4: Simplify right side
   820,984.78x = 519,359,272,608.89
5. Step 5: Solve for x
   x = 519,359,272,608.89/820,984.78
6. Step 6: Final answer
   x = 632,605.24