Finding the Fourth Proportional to 3,744.10, 5,611.59 and 2,648.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,744.10 : 5,611.59 = 2,648.78 : x
2. Step 2: Convert to fraction form
   3,744.10/5,611.59 = 2,648.78/x
3. Step 3: Cross multiply
   3,744.10x = 5,611.59 × 2,648.78
4. Step 4: Simplify right side
   3,744.10x = 14,863,867.36
5. Step 5: Solve for x
   x = 14,863,867.36/3,744.10
6. Step 6: Final answer
   x = 3,969.94