Finding the Fourth Proportional to 2,339.72, 3,510.26 and 758.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.72 : 3,510.26 = 758.42 : x
2. Step 2: Convert to fraction form
   2,339.72/3,510.26 = 758.42/x
3. Step 3: Cross multiply
   2,339.72x = 3,510.26 × 758.42
4. Step 4: Simplify right side
   2,339.72x = 2,662,251.39
5. Step 5: Solve for x
   x = 2,662,251.39/2,339.72
6. Step 6: Final answer
   x = 1,137.85