Finding the Fourth Proportional to 1,155,002.73, 1,593,913.85 and 638,729.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,002.73 : 1,593,913.85 = 638,729.79 : x
2. Step 2: Convert to fraction form
   1,155,002.73/1,593,913.85 = 638,729.79/x
3. Step 3: Cross multiply
   1,155,002.73x = 1,593,913.85 × 638,729.79
4. Step 4: Simplify right side
   1,155,002.73x = 1,018,080,258,688.59
5. Step 5: Solve for x
   x = 1,018,080,258,688.59/1,155,002.73
6. Step 6: Final answer
   x = 881,452.69