Finding the Fourth Proportional to 1,724.76, 2,588.36 and 1,559.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.76 : 2,588.36 = 1,559.52 : x
2. Step 2: Convert to fraction form
   1,724.76/2,588.36 = 1,559.52/x
3. Step 3: Cross multiply
   1,724.76x = 2,588.36 × 1,559.52
4. Step 4: Simplify right side
   1,724.76x = 4,036,591.39
5. Step 5: Solve for x
   x = 4,036,591.39/1,724.76
6. Step 6: Final answer
   x = 2,340.38