Finding the Fourth Proportional to 1,962.56, 2,708.34 and 1,078.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,962.56 : 2,708.34 = 1,078.37 : x
2. Step 2: Convert to fraction form
   1,962.56/2,708.34 = 1,078.37/x
3. Step 3: Cross multiply
   1,962.56x = 2,708.34 × 1,078.37
4. Step 4: Simplify right side
   1,962.56x = 2,920,592.79
5. Step 5: Solve for x
   x = 2,920,592.79/1,962.56
6. Step 6: Final answer
   x = 1,488.15