Finding the Fourth Proportional to 2,639.82, 3,958.77 and 995.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639.82 : 3,958.77 = 995.52 : x
2. Step 2: Convert to fraction form
   2,639.82/3,958.77 = 995.52/x
3. Step 3: Cross multiply
   2,639.82x = 3,958.77 × 995.52
4. Step 4: Simplify right side
   2,639.82x = 3,941,034.71
5. Step 5: Solve for x
   x = 3,941,034.71/2,639.82
6. Step 6: Final answer
   x = 1,492.92