Finding the Fourth Proportional to 2,609.33, 3,913.59 and 760.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.33 : 3,913.59 = 760.06 : x
2. Step 2: Convert to fraction form
   2,609.33/3,913.59 = 760.06/x
3. Step 3: Cross multiply
   2,609.33x = 3,913.59 × 760.06
4. Step 4: Simplify right side
   2,609.33x = 2,974,563.22
5. Step 5: Solve for x
   x = 2,974,563.22/2,609.33
6. Step 6: Final answer
   x = 1,139.97