Finding the Fourth Proportional to 2,256.69, 3,109.27 and 1,687.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.69 : 3,109.27 = 1,687.14 : x
2. Step 2: Convert to fraction form
   2,256.69/3,109.27 = 1,687.14/x
3. Step 3: Cross multiply
   2,256.69x = 3,109.27 × 1,687.14
4. Step 4: Simplify right side
   2,256.69x = 5,245,773.79
5. Step 5: Solve for x
   x = 5,245,773.79/2,256.69
6. Step 6: Final answer
   x = 2,324.54