Finding the Fourth Proportional to 2,728.55, 3,765.07 and 1,549.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.55 : 3,765.07 = 1,549.59 : x
2. Step 2: Convert to fraction form
   2,728.55/3,765.07 = 1,549.59/x
3. Step 3: Cross multiply
   2,728.55x = 3,765.07 × 1,549.59
4. Step 4: Simplify right side
   2,728.55x = 5,834,314.82
5. Step 5: Solve for x
   x = 5,834,314.82/2,728.55
6. Step 6: Final answer
   x = 2,138.25