Finding the Fourth Proportional to 1,003.07, 1,384.17 and 560.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.07 : 1,384.17 = 560.89 : x
2. Step 2: Convert to fraction form
   1,003.07/1,384.17 = 560.89/x
3. Step 3: Cross multiply
   1,003.07x = 1,384.17 × 560.89
4. Step 4: Simplify right side
   1,003.07x = 776,367.11
5. Step 5: Solve for x
   x = 776,367.11/1,003.07
6. Step 6: Final answer
   x = 773.99