Finding the Fourth Proportional to 3,540.72, 4,886.42 and 2,049.11

Step by Step Solution

1. Step 1: Write the proportion equation
   3,540.72 : 4,886.42 = 2,049.11 : x
2. Step 2: Convert to fraction form
   3,540.72/4,886.42 = 2,049.11/x
3. Step 3: Cross multiply
   3,540.72x = 4,886.42 × 2,049.11
4. Step 4: Simplify right side
   3,540.72x = 10,012,812.09
5. Step 5: Solve for x
   x = 10,012,812.09/3,540.72
6. Step 6: Final answer
   x = 2,827.90