Finding the Fourth Proportional to 1,617.28, 2,233.92 and 1,150.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617.28 : 2,233.92 = 1,150.72 : x
2. Step 2: Convert to fraction form
   1,617.28/2,233.92 = 1,150.72/x
3. Step 3: Cross multiply
   1,617.28x = 2,233.92 × 1,150.72
4. Step 4: Simplify right side
   1,617.28x = 2,570,616.42
5. Step 5: Solve for x
   x = 2,570,616.42/1,617.28
6. Step 6: Final answer
   x = 1,589.47