Finding the Fourth Proportional to 2,162.04, 2,983.57 and 1,217.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.04 : 2,983.57 = 1,217.83 : x
2. Step 2: Convert to fraction form
   2,162.04/2,983.57 = 1,217.83/x
3. Step 3: Cross multiply
   2,162.04x = 2,983.57 × 1,217.83
4. Step 4: Simplify right side
   2,162.04x = 3,633,481.05
5. Step 5: Solve for x
   x = 3,633,481.05/2,162.04
6. Step 6: Final answer
   x = 1,680.58