Finding the Fourth Proportional to 2,550.24, 3,517.20 and 1,665.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.24 : 3,517.20 = 1,665.36 : x
2. Step 2: Convert to fraction form
   2,550.24/3,517.20 = 1,665.36/x
3. Step 3: Cross multiply
   2,550.24x = 3,517.20 × 1,665.36
4. Step 4: Simplify right side
   2,550.24x = 5,857,404.19
5. Step 5: Solve for x
   x = 5,857,404.19/2,550.24
6. Step 6: Final answer
   x = 2,296.81