Finding the Fourth Proportional to 2,578.38, 3,559.08 and 1,530.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.38 : 3,559.08 = 1,530.44 : x
2. Step 2: Convert to fraction form
   2,578.38/3,559.08 = 1,530.44/x
3. Step 3: Cross multiply
   2,578.38x = 3,559.08 × 1,530.44
4. Step 4: Simplify right side
   2,578.38x = 5,446,949.50
5. Step 5: Solve for x
   x = 5,446,949.50/2,578.38
6. Step 6: Final answer
   x = 2,112.55