Finding the Fourth Proportional to 609,339.72, 840,878.52 and 337,401.72

Step by Step Solution

1. Step 1: Write the proportion equation
   609,339.72 : 840,878.52 = 337,401.72 : x
2. Step 2: Convert to fraction form
   609,339.72/840,878.52 = 337,401.72/x
3. Step 3: Cross multiply
   609,339.72x = 840,878.52 × 337,401.72
4. Step 4: Simplify right side
   609,339.72x = 283,713,858,959.05
5. Step 5: Solve for x
   x = 283,713,858,959.05/609,339.72
6. Step 6: Final answer
   x = 465,608.67