Finding the Fourth Proportional to 2,306.33, 3,176.31 and 2,158.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,306.33 : 3,176.31 = 2,158.10 : x
2. Step 2: Convert to fraction form
   2,306.33/3,176.31 = 2,158.10/x
3. Step 3: Cross multiply
   2,306.33x = 3,176.31 × 2,158.10
4. Step 4: Simplify right side
   2,306.33x = 6,854,794.61
5. Step 5: Solve for x
   x = 6,854,794.61/2,306.33
6. Step 6: Final answer
   x = 2,972.17