Finding the Fourth Proportional to 623,922, 861,012.84 and 337,441.72

Step by Step Solution

1. Step 1: Write the proportion equation
   623,922 : 861,012.84 = 337,441.72 : x
2. Step 2: Convert to fraction form
   623,922/861,012.84 = 337,441.72/x
3. Step 3: Cross multiply
   623,922x = 861,012.84 × 337,441.72
4. Step 4: Simplify right side
   623,922x = 290,541,653,671.69
5. Step 5: Solve for x
   x = 290,541,653,671.69/623,922
6. Step 6: Final answer
   x = 465,669.83