Finding the Fourth Proportional to 5,831.92, 8,743.36 and 3,978.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,831.92 : 8,743.36 = 3,978.48 : x
2. Step 2: Convert to fraction form
   5,831.92/8,743.36 = 3,978.48/x
3. Step 3: Cross multiply
   5,831.92x = 8,743.36 × 3,978.48
4. Step 4: Simplify right side
   5,831.92x = 34,785,282.89
5. Step 5: Solve for x
   x = 34,785,282.89/5,831.92
6. Step 6: Final answer
   x = 5,964.64