Finding the Fourth Proportional to 2,286.72, 3,161.52 and 1,730.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286.72 : 3,161.52 = 1,730.10 : x
2. Step 2: Convert to fraction form
   2,286.72/3,161.52 = 1,730.10/x
3. Step 3: Cross multiply
   2,286.72x = 3,161.52 × 1,730.10
4. Step 4: Simplify right side
   2,286.72x = 5,469,745.75
5. Step 5: Solve for x
   x = 5,469,745.75/2,286.72
6. Step 6: Final answer
   x = 2,391.96