Finding the Fourth Proportional to 2,123.14, 3,180.39 and 965.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.14 : 3,180.39 = 965.38 : x
2. Step 2: Convert to fraction form
   2,123.14/3,180.39 = 965.38/x
3. Step 3: Cross multiply
   2,123.14x = 3,180.39 × 965.38
4. Step 4: Simplify right side
   2,123.14x = 3,070,284.90
5. Step 5: Solve for x
   x = 3,070,284.90/2,123.14
6. Step 6: Final answer
   x = 1,446.11