Finding the Fourth Proportional to 2,267.91, 3,385.46 and 2,105.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.91 : 3,385.46 = 2,105.71 : x
2. Step 2: Convert to fraction form
   2,267.91/3,385.46 = 2,105.71/x
3. Step 3: Cross multiply
   2,267.91x = 3,385.46 × 2,105.71
4. Step 4: Simplify right side
   2,267.91x = 7,128,793.78
5. Step 5: Solve for x
   x = 7,128,793.78/2,267.91
6. Step 6: Final answer
   x = 3,143.33