Finding the Fourth Proportional to 2,393.27, 3,589.49 and 661.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,393.27 : 3,589.49 = 661.89 : x
2. Step 2: Convert to fraction form
   2,393.27/3,589.49 = 661.89/x
3. Step 3: Cross multiply
   2,393.27x = 3,589.49 × 661.89
4. Step 4: Simplify right side
   2,393.27x = 2,375,847.54
5. Step 5: Solve for x
   x = 2,375,847.54/2,393.27
6. Step 6: Final answer
   x = 992.72