Finding the Fourth Proportional to 2,568.21, 3,543.89 and 1,449.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.21 : 3,543.89 = 1,449.15 : x
2. Step 2: Convert to fraction form
   2,568.21/3,543.89 = 1,449.15/x
3. Step 3: Cross multiply
   2,568.21x = 3,543.89 × 1,449.15
4. Step 4: Simplify right side
   2,568.21x = 5,135,620.95
5. Step 5: Solve for x
   x = 5,135,620.95/2,568.21
6. Step 6: Final answer
   x = 1,999.69