Finding the Fourth Proportional to 2,638.52, 3,958.69 and 995.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.52 : 3,958.69 = 995.54 : x
2. Step 2: Convert to fraction form
   2,638.52/3,958.69 = 995.54/x
3. Step 3: Cross multiply
   2,638.52x = 3,958.69 × 995.54
4. Step 4: Simplify right side
   2,638.52x = 3,941,014.45
5. Step 5: Solve for x
   x = 3,941,014.45/2,638.52
6. Step 6: Final answer
   x = 1,493.65