Finding the Fourth Proportional to 2,596.47, 3,899.03 and 2,576.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,596.47 : 3,899.03 = 2,576.31 : x
2. Step 2: Convert to fraction form
   2,596.47/3,899.03 = 2,576.31/x
3. Step 3: Cross multiply
   2,596.47x = 3,899.03 × 2,576.31
4. Step 4: Simplify right side
   2,596.47x = 10,045,109.98
5. Step 5: Solve for x
   x = 10,045,109.98/2,596.47
6. Step 6: Final answer
   x = 3,868.76