Finding the Fourth Proportional to 1,103.55, 1,655.69 and 487.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.55 : 1,655.69 = 487.41 : x
2. Step 2: Convert to fraction form
   1,103.55/1,655.69 = 487.41/x
3. Step 3: Cross multiply
   1,103.55x = 1,655.69 × 487.41
4. Step 4: Simplify right side
   1,103.55x = 806,997.43
5. Step 5: Solve for x
   x = 806,997.43/1,103.55
6. Step 6: Final answer
   x = 731.27