Finding the Fourth Proportional to 2,578.43, 3,558.40 and 1,459.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.43 : 3,558.40 = 1,459.49 : x
2. Step 2: Convert to fraction form
   2,578.43/3,558.40 = 1,459.49/x
3. Step 3: Cross multiply
   2,578.43x = 3,558.40 × 1,459.49
4. Step 4: Simplify right side
   2,578.43x = 5,193,427.78
5. Step 5: Solve for x
   x = 5,193,427.78/2,578.43
6. Step 6: Final answer
   x = 2,014.18