Finding the Fourth Proportional to 2,609.73, 3,915.24 and 760.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.73 : 3,915.24 = 760.86 : x
2. Step 2: Convert to fraction form
   2,609.73/3,915.24 = 760.86/x
3. Step 3: Cross multiply
   2,609.73x = 3,915.24 × 760.86
4. Step 4: Simplify right side
   2,609.73x = 2,978,949.51
5. Step 5: Solve for x
   x = 2,978,949.51/2,609.73
6. Step 6: Final answer
   x = 1,141.48