Finding the Fourth Proportional to 617,978.16, 852,369.29 and 567,154.72

Step by Step Solution

1. Step 1: Write the proportion equation
   617,978.16 : 852,369.29 = 567,154.72 : x
2. Step 2: Convert to fraction form
   617,978.16/852,369.29 = 567,154.72/x
3. Step 3: Cross multiply
   617,978.16x = 852,369.29 × 567,154.72
4. Step 4: Simplify right side
   617,978.16x = 483,425,266,006.55
5. Step 5: Solve for x
   x = 483,425,266,006.55/617,978.16
6. Step 6: Final answer
   x = 782,269.18