Finding the Fourth Proportional to 948,532.27, 1,308,984.69 and 518,803.21

Step by Step Solution

1. Step 1: Write the proportion equation
   948,532.27 : 1,308,984.69 = 518,803.21 : x
2. Step 2: Convert to fraction form
   948,532.27/1,308,984.69 = 518,803.21/x
3. Step 3: Cross multiply
   948,532.27x = 1,308,984.69 × 518,803.21
4. Step 4: Simplify right side
   948,532.27x = 679,105,459,012.86
5. Step 5: Solve for x
   x = 679,105,459,012.86/948,532.27
6. Step 6: Final answer
   x = 715,953.99