Finding the Fourth Proportional to 2,579.52, 3,557.98 and 1,585.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579.52 : 3,557.98 = 1,585.12 : x
2. Step 2: Convert to fraction form
   2,579.52/3,557.98 = 1,585.12/x
3. Step 3: Cross multiply
   2,579.52x = 3,557.98 × 1,585.12
4. Step 4: Simplify right side
   2,579.52x = 5,639,816.10
5. Step 5: Solve for x
   x = 5,639,816.10/2,579.52
6. Step 6: Final answer
   x = 2,186.38