Finding the Fourth Proportional to 2,871.43, 3,963.89 and 2,208.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,871.43 : 3,963.89 = 2,208.05 : x
2. Step 2: Convert to fraction form
   2,871.43/3,963.89 = 2,208.05/x
3. Step 3: Cross multiply
   2,871.43x = 3,963.89 × 2,208.05
4. Step 4: Simplify right side
   2,871.43x = 8,752,467.31
5. Step 5: Solve for x
   x = 8,752,467.31/2,871.43
6. Step 6: Final answer
   x = 3,048.12