Finding the Fourth Proportional to 1,962.30, 2,707.97 and 1,078.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,962.30 : 2,707.97 = 1,078.10 : x
2. Step 2: Convert to fraction form
   1,962.30/2,707.97 = 1,078.10/x
3. Step 3: Cross multiply
   1,962.30x = 2,707.97 × 1,078.10
4. Step 4: Simplify right side
   1,962.30x = 2,919,470.39
5. Step 5: Solve for x
   x = 2,919,470.39/1,962.30
6. Step 6: Final answer
   x = 1,487.78