Finding the Fourth Proportional to 1,103.59, 1,655.79 and 487.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.59 : 1,655.79 = 487.27 : x
2. Step 2: Convert to fraction form
   1,103.59/1,655.79 = 487.27/x
3. Step 3: Cross multiply
   1,103.59x = 1,655.79 × 487.27
4. Step 4: Simplify right side
   1,103.59x = 806,816.79
5. Step 5: Solve for x
   x = 806,816.79/1,103.59
6. Step 6: Final answer
   x = 731.08