Finding the Fourth Proportional to 809,500.86, 1,117,112.78 and 446,925.42

Step by Step Solution

1. Step 1: Write the proportion equation
   809,500.86 : 1,117,112.78 = 446,925.42 : x
2. Step 2: Convert to fraction form
   809,500.86/1,117,112.78 = 446,925.42/x
3. Step 3: Cross multiply
   809,500.86x = 1,117,112.78 × 446,925.42
4. Step 4: Simplify right side
   809,500.86x = 499,266,099,506.18
5. Step 5: Solve for x
   x = 499,266,099,506.18/809,500.86
6. Step 6: Final answer
   x = 616,757.96