Finding the Fourth Proportional to 2,749.55, 4,101.13 and 2,667.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,749.55 : 4,101.13 = 2,667.74 : x
2. Step 2: Convert to fraction form
   2,749.55/4,101.13 = 2,667.74/x
3. Step 3: Cross multiply
   2,749.55x = 4,101.13 × 2,667.74
4. Step 4: Simplify right side
   2,749.55x = 10,940,731.38
5. Step 5: Solve for x
   x = 10,940,731.38/2,749.55
6. Step 6: Final answer
   x = 3,979.11