Finding the Fourth Proportional to 863,665.34, 1,295,664.05 and 331,144.83

Step by Step Solution

1. Step 1: Write the proportion equation
   863,665.34 : 1,295,664.05 = 331,144.83 : x
2. Step 2: Convert to fraction form
   863,665.34/1,295,664.05 = 331,144.83/x
3. Step 3: Cross multiply
   863,665.34x = 1,295,664.05 × 331,144.83
4. Step 4: Simplify right side
   863,665.34x = 429,052,456,046.28
5. Step 5: Solve for x
   x = 429,052,456,046.28/863,665.34
6. Step 6: Final answer
   x = 496,780.92