Finding the Fourth Proportional to 627,858.72, 866,440.50 and 341,379

Step by Step Solution

1. Step 1: Write the proportion equation
   627,858.72 : 866,440.50 = 341,379 : x
2. Step 2: Convert to fraction form
   627,858.72/866,440.50 = 341,379/x
3. Step 3: Cross multiply
   627,858.72x = 866,440.50 × 341,379
4. Step 4: Simplify right side
   627,858.72x = 295,784,591,449.50
5. Step 5: Solve for x
   x = 295,784,591,449.50/627,858.72
6. Step 6: Final answer
   x = 471,100.55