Finding the Fourth Proportional to 2,443.84, 3,372.24 and 1,449.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.84 : 3,372.24 = 1,449.20 : x
2. Step 2: Convert to fraction form
   2,443.84/3,372.24 = 1,449.20/x
3. Step 3: Cross multiply
   2,443.84x = 3,372.24 × 1,449.20
4. Step 4: Simplify right side
   2,443.84x = 4,887,050.21
5. Step 5: Solve for x
   x = 4,887,050.21/2,443.84
6. Step 6: Final answer
   x = 1,999.74