Finding the Fourth Proportional to 2,149.34, 3,223.17 and 762.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,149.34 : 3,223.17 = 762.42 : x
2. Step 2: Convert to fraction form
   2,149.34/3,223.17 = 762.42/x
3. Step 3: Cross multiply
   2,149.34x = 3,223.17 × 762.42
4. Step 4: Simplify right side
   2,149.34x = 2,457,409.27
5. Step 5: Solve for x
   x = 2,457,409.27/2,149.34
6. Step 6: Final answer
   x = 1,143.33