Finding the Fourth Proportional to 1,724.57, 2,380.79 and 1,061.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.57 : 2,380.79 = 1,061.81 : x
2. Step 2: Convert to fraction form
   1,724.57/2,380.79 = 1,061.81/x
3. Step 3: Cross multiply
   1,724.57x = 2,380.79 × 1,061.81
4. Step 4: Simplify right side
   1,724.57x = 2,527,946.31
5. Step 5: Solve for x
   x = 2,527,946.31/1,724.57
6. Step 6: Final answer
   x = 1,465.84