Finding the Fourth Proportional to 1,891.92, 2,831.76 and 1,162.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891.92 : 2,831.76 = 1,162.96 : x
2. Step 2: Convert to fraction form
   1,891.92/2,831.76 = 1,162.96/x
3. Step 3: Cross multiply
   1,891.92x = 2,831.76 × 1,162.96
4. Step 4: Simplify right side
   1,891.92x = 3,293,223.61
5. Step 5: Solve for x
   x = 3,293,223.61/1,891.92
6. Step 6: Final answer
   x = 1,740.68