Finding the Fourth Proportional to 948,322.10, 1,308,684.42 and 518,602.52

Step by Step Solution

1. Step 1: Write the proportion equation
   948,322.10 : 1,308,684.42 = 518,602.52 : x
2. Step 2: Convert to fraction form
   948,322.10/1,308,684.42 = 518,602.52/x
3. Step 3: Cross multiply
   948,322.10x = 1,308,684.42 × 518,602.52
4. Step 4: Simplify right side
   948,322.10x = 678,687,031,553.32
5. Step 5: Solve for x
   x = 678,687,031,553.32/948,322.10
6. Step 6: Final answer
   x = 715,671.43