Finding the Fourth Proportional to 1,658.28, 2,288.52 and 959.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658.28 : 2,288.52 = 959.76 : x
2. Step 2: Convert to fraction form
   1,658.28/2,288.52 = 959.76/x
3. Step 3: Cross multiply
   1,658.28x = 2,288.52 × 959.76
4. Step 4: Simplify right side
   1,658.28x = 2,196,429.96
5. Step 5: Solve for x
   x = 2,196,429.96/1,658.28
6. Step 6: Final answer
   x = 1,324.52