Finding the Fourth Proportional to 2,876.85, 3,960.46 and 2,744.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,876.85 : 3,960.46 = 2,744.61 : x
2. Step 2: Convert to fraction form
   2,876.85/3,960.46 = 2,744.61/x
3. Step 3: Cross multiply
   2,876.85x = 3,960.46 × 2,744.61
4. Step 4: Simplify right side
   2,876.85x = 10,869,923.63
5. Step 5: Solve for x
   x = 10,869,923.63/2,876.85
6. Step 6: Final answer
   x = 3,778.41