Finding the Fourth Proportional to 819,231.57, 1,130,577.89 and 456,658.02

Step by Step Solution

1. Step 1: Write the proportion equation
   819,231.57 : 1,130,577.89 = 456,658.02 : x
2. Step 2: Convert to fraction form
   819,231.57/1,130,577.89 = 456,658.02/x
3. Step 3: Cross multiply
   819,231.57x = 1,130,577.89 × 456,658.02
4. Step 4: Simplify right side
   819,231.57x = 516,287,458,419.89
5. Step 5: Solve for x
   x = 516,287,458,419.89/819,231.57
6. Step 6: Final answer
   x = 630,209.43