Finding the Fourth Proportional to 639,560.88, 882,594 and 353,081.52

Step by Step Solution

1. Step 1: Write the proportion equation
   639,560.88 : 882,594 = 353,081.52 : x
2. Step 2: Convert to fraction form
   639,560.88/882,594 = 353,081.52/x
3. Step 3: Cross multiply
   639,560.88x = 882,594 × 353,081.52
4. Step 4: Simplify right side
   639,560.88x = 311,627,631,062.88
5. Step 5: Solve for x
   x = 311,627,631,062.88/639,560.88
6. Step 6: Final answer
   x = 487,252.49