Finding the Fourth Proportional to 1,002.43, 1,383.43 and 560.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.43 : 1,383.43 = 560.41 : x
2. Step 2: Convert to fraction form
   1,002.43/1,383.43 = 560.41/x
3. Step 3: Cross multiply
   1,002.43x = 1,383.43 × 560.41
4. Step 4: Simplify right side
   1,002.43x = 775,288.01
5. Step 5: Solve for x
   x = 775,288.01/1,002.43
6. Step 6: Final answer
   x = 773.41