Finding the Fourth Proportional to 2,578.89, 3,558.90 and 1,459.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.89 : 3,558.90 = 1,459.74 : x
2. Step 2: Convert to fraction form
   2,578.89/3,558.90 = 1,459.74/x
3. Step 3: Cross multiply
   2,578.89x = 3,558.90 × 1,459.74
4. Step 4: Simplify right side
   2,578.89x = 5,195,068.69
5. Step 5: Solve for x
   x = 5,195,068.69/2,578.89
6. Step 6: Final answer
   x = 2,014.46