Finding the Fourth Proportional to 2,643.24, 3,647.55 and 1,448.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.24 : 3,647.55 = 1,448.22 : x
2. Step 2: Convert to fraction form
   2,643.24/3,647.55 = 1,448.22/x
3. Step 3: Cross multiply
   2,643.24x = 3,647.55 × 1,448.22
4. Step 4: Simplify right side
   2,643.24x = 5,282,454.86
5. Step 5: Solve for x
   x = 5,282,454.86/2,643.24
6. Step 6: Final answer
   x = 1,998.48