Finding the Fourth Proportional to 1,116.40, 1,540.56 and 650.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.40 : 1,540.56 = 650.56 : x
2. Step 2: Convert to fraction form
   1,116.40/1,540.56 = 650.56/x
3. Step 3: Cross multiply
   1,116.40x = 1,540.56 × 650.56
4. Step 4: Simplify right side
   1,116.40x = 1,002,226.71
5. Step 5: Solve for x
   x = 1,002,226.71/1,116.40
6. Step 6: Final answer
   x = 897.73