Finding the Fourth Proportional to 1,962.36, 2,707.89 and 1,078.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,962.36 : 2,707.89 = 1,078.14 : x
2. Step 2: Convert to fraction form
   1,962.36/2,707.89 = 1,078.14/x
3. Step 3: Cross multiply
   1,962.36x = 2,707.89 × 1,078.14
4. Step 4: Simplify right side
   1,962.36x = 2,919,484.52
5. Step 5: Solve for x
   x = 2,919,484.52/1,962.36
6. Step 6: Final answer
   x = 1,487.74