Finding the Fourth Proportional to 2,609.39, 3,914.47 and 760.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.39 : 3,914.47 = 760.27 : x
2. Step 2: Convert to fraction form
   2,609.39/3,914.47 = 760.27/x
3. Step 3: Cross multiply
   2,609.39x = 3,914.47 × 760.27
4. Step 4: Simplify right side
   2,609.39x = 2,976,034.53
5. Step 5: Solve for x
   x = 2,976,034.53/2,609.39
6. Step 6: Final answer
   x = 1,140.51