Finding the Fourth Proportional to 1,724.01, 2,379.06 and 938.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.01 : 2,379.06 = 938.05 : x
2. Step 2: Convert to fraction form
   1,724.01/2,379.06 = 938.05/x
3. Step 3: Cross multiply
   1,724.01x = 2,379.06 × 938.05
4. Step 4: Simplify right side
   1,724.01x = 2,231,684.67
5. Step 5: Solve for x
   x = 2,231,684.67/1,724.01
6. Step 6: Final answer
   x = 1,294.48