Finding the Fourth Proportional to 948,271.92, 1,308,614.69 and 518,552.05

Step by Step Solution

1. Step 1: Write the proportion equation
   948,271.92 : 1,308,614.69 = 518,552.05 : x
2. Step 2: Convert to fraction form
   948,271.92/1,308,614.69 = 518,552.05/x
3. Step 3: Cross multiply
   948,271.92x = 1,308,614.69 × 518,552.05
4. Step 4: Simplify right side
   948,271.92x = 678,584,831,401.73
5. Step 5: Solve for x
   x = 678,584,831,401.73/948,271.92
6. Step 6: Final answer
   x = 715,601.52