Finding the Fourth Proportional to 2,578.44, 3,559.17 and 1,530.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.44 : 3,559.17 = 1,530.50 : x
2. Step 2: Convert to fraction form
   2,578.44/3,559.17 = 1,530.50/x
3. Step 3: Cross multiply
   2,578.44x = 3,559.17 × 1,530.50
4. Step 4: Simplify right side
   2,578.44x = 5,447,302.03
5. Step 5: Solve for x
   x = 5,447,302.03/2,578.44
6. Step 6: Final answer
   x = 2,112.63