Finding the Fourth Proportional to 1,724.28, 2,379.48 and 1,061.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.28 : 2,379.48 = 1,061.12 : x
2. Step 2: Convert to fraction form
   1,724.28/2,379.48 = 1,061.12/x
3. Step 3: Cross multiply
   1,724.28x = 2,379.48 × 1,061.12
4. Step 4: Simplify right side
   1,724.28x = 2,524,914.82
5. Step 5: Solve for x
   x = 2,524,914.82/1,724.28
6. Step 6: Final answer
   x = 1,464.33