Finding the Fourth Proportional to 1,116.48, 1,540.84 and 650.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.48 : 1,540.84 = 650.88 : x
2. Step 2: Convert to fraction form
   1,116.48/1,540.84 = 650.88/x
3. Step 3: Cross multiply
   1,116.48x = 1,540.84 × 650.88
4. Step 4: Simplify right side
   1,116.48x = 1,002,901.94
5. Step 5: Solve for x
   x = 1,002,901.94/1,116.48
6. Step 6: Final answer
   x = 898.27