Finding the Fourth Proportional to 1,002.24, 1,383.07 and 560.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.24 : 1,383.07 = 560.15 : x
2. Step 2: Convert to fraction form
   1,002.24/1,383.07 = 560.15/x
3. Step 3: Cross multiply
   1,002.24x = 1,383.07 × 560.15
4. Step 4: Simplify right side
   1,002.24x = 774,723.53
5. Step 5: Solve for x
   x = 774,723.53/1,002.24
6. Step 6: Final answer
   x = 772.99