Finding the Fourth Proportional to 2,799.55, 3,863.18 and 1,540.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.55 : 3,863.18 = 1,540.65 : x
2. Step 2: Convert to fraction form
   2,799.55/3,863.18 = 1,540.65/x
3. Step 3: Cross multiply
   2,799.55x = 3,863.18 × 1,540.65
4. Step 4: Simplify right side
   2,799.55x = 5,951,817.94
5. Step 5: Solve for x
   x = 5,951,817.94/2,799.55
6. Step 6: Final answer
   x = 2,125.99