Finding the Fourth Proportional to 2,902.79, 4,005.33 and 1,724.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,902.79 : 4,005.33 = 1,724.15 : x
2. Step 2: Convert to fraction form
   2,902.79/4,005.33 = 1,724.15/x
3. Step 3: Cross multiply
   2,902.79x = 4,005.33 × 1,724.15
4. Step 4: Simplify right side
   2,902.79x = 6,905,789.72
5. Step 5: Solve for x
   x = 6,905,789.72/2,902.79
6. Step 6: Final answer
   x = 2,379.02