Finding the Fourth Proportional to 1,151.92, 1,589.61 and 654.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.92 : 1,589.61 = 654.55 : x
2. Step 2: Convert to fraction form
   1,151.92/1,589.61 = 654.55/x
3. Step 3: Cross multiply
   1,151.92x = 1,589.61 × 654.55
4. Step 4: Simplify right side
   1,151.92x = 1,040,479.23
5. Step 5: Solve for x
   x = 1,040,479.23/1,151.92
6. Step 6: Final answer
   x = 903.26