Finding the Fourth Proportional to 2,703.83, 4,057.01 and 2,660.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,703.83 : 4,057.01 = 2,660.15 : x
2. Step 2: Convert to fraction form
   2,703.83/4,057.01 = 2,660.15/x
3. Step 3: Cross multiply
   2,703.83x = 4,057.01 × 2,660.15
4. Step 4: Simplify right side
   2,703.83x = 10,792,255.15
5. Step 5: Solve for x
   x = 10,792,255.15/2,703.83
6. Step 6: Final answer
   x = 3,991.47