Finding the Fourth Proportional to 2,052.14, 3,078.18 and 1,392.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,052.14 : 3,078.18 = 1,392.38 : x
2. Step 2: Convert to fraction form
   2,052.14/3,078.18 = 1,392.38/x
3. Step 3: Cross multiply
   2,052.14x = 3,078.18 × 1,392.38
4. Step 4: Simplify right side
   2,052.14x = 4,285,997.64
5. Step 5: Solve for x
   x = 4,285,997.64/2,052.14
6. Step 6: Final answer
   x = 2,088.56