Finding the Fourth Proportional to 3,647.91, 5,029.50 and 2,386.97

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647.91 : 5,029.50 = 2,386.97 : x
2. Step 2: Convert to fraction form
   3,647.91/5,029.50 = 2,386.97/x
3. Step 3: Cross multiply
   3,647.91x = 5,029.50 × 2,386.97
4. Step 4: Simplify right side
   3,647.91x = 12,005,240.47
5. Step 5: Solve for x
   x = 12,005,240.47/3,647.91
6. Step 6: Final answer
   x = 3,290.99