Finding the Fourth Proportional to 3,846.01, 5,306.28 and 2,167.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846.01 : 5,306.28 = 2,167.15 : x
2. Step 2: Convert to fraction form
   3,846.01/5,306.28 = 2,167.15/x
3. Step 3: Cross multiply
   3,846.01x = 5,306.28 × 2,167.15
4. Step 4: Simplify right side
   3,846.01x = 11,499,504.70
5. Step 5: Solve for x
   x = 11,499,504.70/3,846.01
6. Step 6: Final answer
   x = 2,989.98