Finding the Fourth Proportional to 2,449.62, 3,668.22 and 2,105.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.62 : 3,668.22 = 2,105.28 : x
2. Step 2: Convert to fraction form
   2,449.62/3,668.22 = 2,105.28/x
3. Step 3: Cross multiply
   2,449.62x = 3,668.22 × 2,105.28
4. Step 4: Simplify right side
   2,449.62x = 7,722,630.20
5. Step 5: Solve for x
   x = 7,722,630.20/2,449.62
6. Step 6: Final answer
   x = 3,152.58