Finding the Fourth Proportional to 809,385.48, 1,116,922.69 and 446,801.55

Step by Step Solution

1. Step 1: Write the proportion equation
   809,385.48 : 1,116,922.69 = 446,801.55 : x
2. Step 2: Convert to fraction form
   809,385.48/1,116,922.69 = 446,801.55/x
3. Step 3: Cross multiply
   809,385.48x = 1,116,922.69 × 446,801.55
4. Step 4: Simplify right side
   809,385.48x = 499,042,787,167.41
5. Step 5: Solve for x
   x = 499,042,787,167.41/809,385.48
6. Step 6: Final answer
   x = 616,569.98