Finding the Fourth Proportional to 2,728.74, 3,765.72 and 1,549.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.74 : 3,765.72 = 1,549.87 : x
2. Step 2: Convert to fraction form
   2,728.74/3,765.72 = 1,549.87/x
3. Step 3: Cross multiply
   2,728.74x = 3,765.72 × 1,549.87
4. Step 4: Simplify right side
   2,728.74x = 5,836,376.46
5. Step 5: Solve for x
   x = 5,836,376.46/2,728.74
6. Step 6: Final answer
   x = 2,138.85