Finding the Fourth Proportional to 1,082.39, 1,493.47 and 689.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.39 : 1,493.47 = 689.27 : x
2. Step 2: Convert to fraction form
   1,082.39/1,493.47 = 689.27/x
3. Step 3: Cross multiply
   1,082.39x = 1,493.47 × 689.27
4. Step 4: Simplify right side
   1,082.39x = 1,029,404.07
5. Step 5: Solve for x
   x = 1,029,404.07/1,082.39
6. Step 6: Final answer
   x = 951.05