Finding the Fourth Proportional to 2,576.96, 3,864.71 and 995.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576.96 : 3,864.71 = 995.31 : x
2. Step 2: Convert to fraction form
   2,576.96/3,864.71 = 995.31/x
3. Step 3: Cross multiply
   2,576.96x = 3,864.71 × 995.31
4. Step 4: Simplify right side
   2,576.96x = 3,846,596.29
5. Step 5: Solve for x
   x = 3,846,596.29/2,576.96
6. Step 6: Final answer
   x = 1,492.69