Finding the Fourth Proportional to 2,665.10, 3,999.48 and 1,367.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.10 : 3,999.48 = 1,367.48 : x
2. Step 2: Convert to fraction form
   2,665.10/3,999.48 = 1,367.48/x
3. Step 3: Cross multiply
   2,665.10x = 3,999.48 × 1,367.48
4. Step 4: Simplify right side
   2,665.10x = 5,469,213.78
5. Step 5: Solve for x
   x = 5,469,213.78/2,665.10
6. Step 6: Final answer
   x = 2,052.16