Finding the Fourth Proportional to 2,119.50, 3,180.60 and 965.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.50 : 3,180.60 = 965.25 : x
2. Step 2: Convert to fraction form
   2,119.50/3,180.60 = 965.25/x
3. Step 3: Cross multiply
   2,119.50x = 3,180.60 × 965.25
4. Step 4: Simplify right side
   2,119.50x = 3,070,074.15
5. Step 5: Solve for x
   x = 3,070,074.15/2,119.50
6. Step 6: Final answer
   x = 1,448.49