Finding the Fourth Proportional to 980,875.71, 1,353,729.42 and 551,146.50

Step by Step Solution

1. Step 1: Write the proportion equation
   980,875.71 : 1,353,729.42 = 551,146.50 : x
2. Step 2: Convert to fraction form
   980,875.71/1,353,729.42 = 551,146.50/x
3. Step 3: Cross multiply
   980,875.71x = 1,353,729.42 × 551,146.50
4. Step 4: Simplify right side
   980,875.71x = 746,103,231,780.03
5. Step 5: Solve for x
   x = 746,103,231,780.03/980,875.71
6. Step 6: Final answer
   x = 760,650.13