Finding the Fourth Proportional to 2,579.52, 3,561.90 and 2,080.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579.52 : 3,561.90 = 2,080.56 : x
2. Step 2: Convert to fraction form
   2,579.52/3,561.90 = 2,080.56/x
3. Step 3: Cross multiply
   2,579.52x = 3,561.90 × 2,080.56
4. Step 4: Simplify right side
   2,579.52x = 7,410,746.66
5. Step 5: Solve for x
   x = 7,410,746.66/2,579.52
6. Step 6: Final answer
   x = 2,872.92