Finding the Fourth Proportional to 3,016.38, 4,162.23 and 1,689.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,016.38 : 4,162.23 = 1,689.87 : x
2. Step 2: Convert to fraction form
   3,016.38/4,162.23 = 1,689.87/x
3. Step 3: Cross multiply
   3,016.38x = 4,162.23 × 1,689.87
4. Step 4: Simplify right side
   3,016.38x = 7,033,627.61
5. Step 5: Solve for x
   x = 7,033,627.61/3,016.38
6. Step 6: Final answer
   x = 2,331.81