Finding the Fourth Proportional to 1,724.68, 2,380.06 and 938.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.68 : 2,380.06 = 938.73 : x
2. Step 2: Convert to fraction form
   1,724.68/2,380.06 = 938.73/x
3. Step 3: Cross multiply
   1,724.68x = 2,380.06 × 938.73
4. Step 4: Simplify right side
   1,724.68x = 2,234,233.72
5. Step 5: Solve for x
   x = 2,234,233.72/1,724.68
6. Step 6: Final answer
   x = 1,295.45