Finding the Fourth Proportional to 3,959.82, 5,458.59 and 2,630.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,959.82 : 5,458.59 = 2,630.61 : x
2. Step 2: Convert to fraction form
   3,959.82/5,458.59 = 2,630.61/x
3. Step 3: Cross multiply
   3,959.82x = 5,458.59 × 2,630.61
4. Step 4: Simplify right side
   3,959.82x = 14,359,421.44
5. Step 5: Solve for x
   x = 14,359,421.44/3,959.82
6. Step 6: Final answer
   x = 3,626.28