Finding the Fourth Proportional to 2,144.27, 3,217.32 and 974.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.27 : 3,217.32 = 974.23 : x
2. Step 2: Convert to fraction form
   2,144.27/3,217.32 = 974.23/x
3. Step 3: Cross multiply
   2,144.27x = 3,217.32 × 974.23
4. Step 4: Simplify right side
   2,144.27x = 3,134,401.62
5. Step 5: Solve for x
   x = 3,134,401.62/2,144.27
6. Step 6: Final answer
   x = 1,461.76