Finding the Fourth Proportional to 2,799.65, 3,863.36 and 1,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.65 : 3,863.36 = 1,540.50 : x
2. Step 2: Convert to fraction form
   2,799.65/3,863.36 = 1,540.50/x
3. Step 3: Cross multiply
   2,799.65x = 3,863.36 × 1,540.50
4. Step 4: Simplify right side
   2,799.65x = 5,951,483.89
5. Step 5: Solve for x
   x = 5,951,483.89/2,799.65
6. Step 6: Final answer
   x = 2,125.80