Finding the Fourth Proportional to 2,578.35, 3,558.20 and 1,459.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.35 : 3,558.20 = 1,459.47 : x
2. Step 2: Convert to fraction form
   2,578.35/3,558.20 = 1,459.47/x
3. Step 3: Cross multiply
   2,578.35x = 3,558.20 × 1,459.47
4. Step 4: Simplify right side
   2,578.35x = 5,193,078.86
5. Step 5: Solve for x
   x = 5,193,078.86/2,578.35
6. Step 6: Final answer
   x = 2,014.11