Finding the Fourth Proportional to 2,831.14, 3,906.69 and 1,571.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,831.14 : 3,906.69 = 1,571.89 : x
2. Step 2: Convert to fraction form
   2,831.14/3,906.69 = 1,571.89/x
3. Step 3: Cross multiply
   2,831.14x = 3,906.69 × 1,571.89
4. Step 4: Simplify right side
   2,831.14x = 6,140,886.94
5. Step 5: Solve for x
   x = 6,140,886.94/2,831.14
6. Step 6: Final answer
   x = 2,169.05