Finding the Fourth Proportional to 2,614.03, 3,920.59 and 765.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,614.03 : 3,920.59 = 765.25 : x
2. Step 2: Convert to fraction form
   2,614.03/3,920.59 = 765.25/x
3. Step 3: Cross multiply
   2,614.03x = 3,920.59 × 765.25
4. Step 4: Simplify right side
   2,614.03x = 3,000,208.07
5. Step 5: Solve for x
   x = 3,000,208.07/2,614.03
6. Step 6: Final answer
   x = 1,147.74