Finding the Fourth Proportional to 2,831.28, 3,904.41 and 2,200.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,831.28 : 3,904.41 = 2,200.69 : x
2. Step 2: Convert to fraction form
   2,831.28/3,904.41 = 2,200.69/x
3. Step 3: Cross multiply
   2,831.28x = 3,904.41 × 2,200.69
4. Step 4: Simplify right side
   2,831.28x = 8,592,396.04
5. Step 5: Solve for x
   x = 8,592,396.04/2,831.28
6. Step 6: Final answer
   x = 3,034.82