Finding the Fourth Proportional to 2,052.42, 3,079.54 and 1,078.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,052.42 : 3,079.54 = 1,078.30 : x
2. Step 2: Convert to fraction form
   2,052.42/3,079.54 = 1,078.30/x
3. Step 3: Cross multiply
   2,052.42x = 3,079.54 × 1,078.30
4. Step 4: Simplify right side
   2,052.42x = 3,320,667.98
5. Step 5: Solve for x
   x = 3,320,667.98/2,052.42
6. Step 6: Final answer
   x = 1,617.93