Finding the Fourth Proportional to 820,588.47, 1,132,469.15 and 458,083.10

Step by Step Solution

1. Step 1: Write the proportion equation
   820,588.47 : 1,132,469.15 = 458,083.10 : x
2. Step 2: Convert to fraction form
   820,588.47/1,132,469.15 = 458,083.10/x
3. Step 3: Cross multiply
   820,588.47x = 1,132,469.15 × 458,083.10
4. Step 4: Simplify right side
   820,588.47x = 518,764,970,933.60
5. Step 5: Solve for x
   x = 518,764,970,933.60/820,588.47
6. Step 6: Final answer
   x = 632,186.52