Finding the Fourth Proportional to 648,510.89, 974,242.56 and 469,149.55

Step by Step Solution

1. Step 1: Write the proportion equation
   648,510.89 : 974,242.56 = 469,149.55 : x
2. Step 2: Convert to fraction form
   648,510.89/974,242.56 = 469,149.55/x
3. Step 3: Cross multiply
   648,510.89x = 974,242.56 × 469,149.55
4. Step 4: Simplify right side
   648,510.89x = 457,065,457,126.29
5. Step 5: Solve for x
   x = 457,065,457,126.29/648,510.89
6. Step 6: Final answer
   x = 704,792.27