Finding the Fourth Proportional to 2,569.91, 3,548.22 and 1,687.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.91 : 3,548.22 = 1,687.22 : x
2. Step 2: Convert to fraction form
   2,569.91/3,548.22 = 1,687.22/x
3. Step 3: Cross multiply
   2,569.91x = 3,548.22 × 1,687.22
4. Step 4: Simplify right side
   2,569.91x = 5,986,627.75
5. Step 5: Solve for x
   x = 5,986,627.75/2,569.91
6. Step 6: Final answer
   x = 2,329.51