Finding the Fourth Proportional to 2,710.69, 3,718.25 and 2,687.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,710.69 : 3,718.25 = 2,687.29 : x
2. Step 2: Convert to fraction form
   2,710.69/3,718.25 = 2,687.29/x
3. Step 3: Cross multiply
   2,710.69x = 3,718.25 × 2,687.29
4. Step 4: Simplify right side
   2,710.69x = 9,992,018.50
5. Step 5: Solve for x
   x = 9,992,018.50/2,710.69
6. Step 6: Final answer
   x = 3,686.16