Finding the Fourth Proportional to 2,578.82, 3,559.69 and 1,530.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.82 : 3,559.69 = 1,530.88 : x
2. Step 2: Convert to fraction form
   2,578.82/3,559.69 = 1,530.88/x
3. Step 3: Cross multiply
   2,578.82x = 3,559.69 × 1,530.88
4. Step 4: Simplify right side
   2,578.82x = 5,449,432.77
5. Step 5: Solve for x
   x = 5,449,432.77/2,578.82
6. Step 6: Final answer
   x = 2,113.15