Finding the Fourth Proportional to 2,128.92, 3,192.72 and 958.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.92 : 3,192.72 = 958.24 : x
2. Step 2: Convert to fraction form
   2,128.92/3,192.72 = 958.24/x
3. Step 3: Cross multiply
   2,128.92x = 3,192.72 × 958.24
4. Step 4: Simplify right side
   2,128.92x = 3,059,392.01
5. Step 5: Solve for x
   x = 3,059,392.01/2,128.92
6. Step 6: Final answer
   x = 1,437.06