Finding the Fourth Proportional to 2,072.38, 3,109.30 and 962.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.38 : 3,109.30 = 962.33 : x
2. Step 2: Convert to fraction form
   2,072.38/3,109.30 = 962.33/x
3. Step 3: Cross multiply
   2,072.38x = 3,109.30 × 962.33
4. Step 4: Simplify right side
   2,072.38x = 2,992,154.72
5. Step 5: Solve for x
   x = 2,992,154.72/2,072.38
6. Step 6: Final answer
   x = 1,443.83