Finding the Fourth Proportional to 2,406.27, 3,608.79 and 761.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.27 : 3,608.79 = 761.97 : x
2. Step 2: Convert to fraction form
   2,406.27/3,608.79 = 761.97/x
3. Step 3: Cross multiply
   2,406.27x = 3,608.79 × 761.97
4. Step 4: Simplify right side
   2,406.27x = 2,749,789.72
5. Step 5: Solve for x
   x = 2,749,789.72/2,406.27
6. Step 6: Final answer
   x = 1,142.76