Finding the Fourth Proportional to 2,660.50, 3,973.19 and 2,518.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660.50 : 3,973.19 = 2,518.48 : x
2. Step 2: Convert to fraction form
   2,660.50/3,973.19 = 2,518.48/x
3. Step 3: Cross multiply
   2,660.50x = 3,973.19 × 2,518.48
4. Step 4: Simplify right side
   2,660.50x = 10,006,399.55
5. Step 5: Solve for x
   x = 10,006,399.55/2,660.50
6. Step 6: Final answer
   x = 3,761.10