Finding the Fourth Proportional to 2,643.88, 3,967.74 and 1,344.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.88 : 3,967.74 = 1,344.04 : x
2. Step 2: Convert to fraction form
   2,643.88/3,967.74 = 1,344.04/x
3. Step 3: Cross multiply
   2,643.88x = 3,967.74 × 1,344.04
4. Step 4: Simplify right side
   2,643.88x = 5,332,801.27
5. Step 5: Solve for x
   x = 5,332,801.27/2,643.88
6. Step 6: Final answer
   x = 2,017.04