Finding the Fourth Proportional to 2,578.71, 3,558.56 and 1,459.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.71 : 3,558.56 = 1,459.63 : x
2. Step 2: Convert to fraction form
   2,578.71/3,558.56 = 1,459.63/x
3. Step 3: Cross multiply
   2,578.71x = 3,558.56 × 1,459.63
4. Step 4: Simplify right side
   2,578.71x = 5,194,164.74
5. Step 5: Solve for x
   x = 5,194,164.74/2,578.71
6. Step 6: Final answer
   x = 2,014.25