Finding the Fourth Proportional to 3,540.72, 5,310.18 and 2,510.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,540.72 : 5,310.18 = 2,510.40 : x
2. Step 2: Convert to fraction form
   3,540.72/5,310.18 = 2,510.40/x
3. Step 3: Cross multiply
   3,540.72x = 5,310.18 × 2,510.40
4. Step 4: Simplify right side
   3,540.72x = 13,330,675.87
5. Step 5: Solve for x
   x = 13,330,675.87/3,540.72
6. Step 6: Final answer
   x = 3,764.96