Finding the Fourth Proportional to 2,052.70, 3,081.30 and 1,078.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,052.70 : 3,081.30 = 1,078.54 : x
2. Step 2: Convert to fraction form
   2,052.70/3,081.30 = 1,078.54/x
3. Step 3: Cross multiply
   2,052.70x = 3,081.30 × 1,078.54
4. Step 4: Simplify right side
   2,052.70x = 3,323,305.30
5. Step 5: Solve for x
   x = 3,323,305.30/2,052.70
6. Step 6: Final answer
   x = 1,618.99