Finding the Fourth Proportional to 2,708.10, 3,722.72 and 2,440.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,708.10 : 3,722.72 = 2,440.80 : x
2. Step 2: Convert to fraction form
   2,708.10/3,722.72 = 2,440.80/x
3. Step 3: Cross multiply
   2,708.10x = 3,722.72 × 2,440.80
4. Step 4: Simplify right side
   2,708.10x = 9,086,402.77
5. Step 5: Solve for x
   x = 9,086,402.77/2,708.10
6. Step 6: Final answer
   x = 3,355.27