Finding the Fourth Proportional to 2,309.46, 3,463.78 and 749.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.46 : 3,463.78 = 749.23 : x
2. Step 2: Convert to fraction form
   2,309.46/3,463.78 = 749.23/x
3. Step 3: Cross multiply
   2,309.46x = 3,463.78 × 749.23
4. Step 4: Simplify right side
   2,309.46x = 2,595,167.89
5. Step 5: Solve for x
   x = 2,595,167.89/2,309.46
6. Step 6: Final answer
   x = 1,123.71