Finding the Fourth Proportional to 2,309.10, 3,462.87 and 748.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.10 : 3,462.87 = 748.69 : x
2. Step 2: Convert to fraction form
   2,309.10/3,462.87 = 748.69/x
3. Step 3: Cross multiply
   2,309.10x = 3,462.87 × 748.69
4. Step 4: Simplify right side
   2,309.10x = 2,592,616.14
5. Step 5: Solve for x
   x = 2,592,616.14/2,309.10
6. Step 6: Final answer
   x = 1,122.78