Finding the Fourth Proportional to 2,749.50, 3,791.46 and 1,911.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,749.50 : 3,791.46 = 1,911.15 : x
2. Step 2: Convert to fraction form
   2,749.50/3,791.46 = 1,911.15/x
3. Step 3: Cross multiply
   2,749.50x = 3,791.46 × 1,911.15
4. Step 4: Simplify right side
   2,749.50x = 7,246,048.78
5. Step 5: Solve for x
   x = 7,246,048.78/2,749.50
6. Step 6: Final answer
   x = 2,635.41