Finding the Fourth Proportional to 2,738.45, 4,086 and 2,675.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.45 : 4,086 = 2,675.42 : x
2. Step 2: Convert to fraction form
   2,738.45/4,086 = 2,675.42/x
3. Step 3: Cross multiply
   2,738.45x = 4,086 × 2,675.42
4. Step 4: Simplify right side
   2,738.45x = 10,931,745.69
5. Step 5: Solve for x
   x = 10,931,745.69/2,738.45
6. Step 6: Final answer
   x = 3,991.95