Finding the Fourth Proportional to 2,544.72, 3,510.54 and 1,660.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.72 : 3,510.54 = 1,660.20 : x
2. Step 2: Convert to fraction form
   2,544.72/3,510.54 = 1,660.20/x
3. Step 3: Cross multiply
   2,544.72x = 3,510.54 × 1,660.20
4. Step 4: Simplify right side
   2,544.72x = 5,828,198.51
5. Step 5: Solve for x
   x = 5,828,198.51/2,544.72
6. Step 6: Final answer
   x = 2,290.31