Finding the Fourth Proportional to 809,050.50, 1,116,490.17 and 451,354.50

Step by Step Solution

1. Step 1: Write the proportion equation
   809,050.50 : 1,116,490.17 = 451,354.50 : x
2. Step 2: Convert to fraction form
   809,050.50/1,116,490.17 = 451,354.50/x
3. Step 3: Cross multiply
   809,050.50x = 1,116,490.17 × 451,354.50
4. Step 4: Simplify right side
   809,050.50x = 503,932,862,435.27
5. Step 5: Solve for x
   x = 503,932,862,435.27/809,050.50
6. Step 6: Final answer
   x = 622,869.48