Finding the Fourth Proportional to 4,020.72, 5,544.89 and 2,759.55

Step by Step Solution

1. Step 1: Write the proportion equation
   4,020.72 : 5,544.89 = 2,759.55 : x
2. Step 2: Convert to fraction form
   4,020.72/5,544.89 = 2,759.55/x
3. Step 3: Cross multiply
   4,020.72x = 5,544.89 × 2,759.55
4. Step 4: Simplify right side
   4,020.72x = 15,301,401.20
5. Step 5: Solve for x
   x = 15,301,401.20/4,020.72
6. Step 6: Final answer
   x = 3,805.64