Finding the Fourth Proportional to 2,799.71, 3,863.69 and 1,540.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.71 : 3,863.69 = 1,540.85 : x
2. Step 2: Convert to fraction form
   2,799.71/3,863.69 = 1,540.85/x
3. Step 3: Cross multiply
   2,799.71x = 3,863.69 × 1,540.85
4. Step 4: Simplify right side
   2,799.71x = 5,953,368.69
5. Step 5: Solve for x
   x = 5,953,368.69/2,799.71
6. Step 6: Final answer
   x = 2,126.43