Finding the Fourth Proportional to 2,162, 2,983.46 and 1,217.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162 : 2,983.46 = 1,217.94 : x
2. Step 2: Convert to fraction form
   2,162/2,983.46 = 1,217.94/x
3. Step 3: Cross multiply
   2,162x = 2,983.46 × 1,217.94
4. Step 4: Simplify right side
   2,162x = 3,633,675.27
5. Step 5: Solve for x
   x = 3,633,675.27/2,162
6. Step 6: Final answer
   x = 1,680.70