Finding the Fourth Proportional to 2,015.78, 3,018.27 and 1,182.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.78 : 3,018.27 = 1,182.16 : x
2. Step 2: Convert to fraction form
   2,015.78/3,018.27 = 1,182.16/x
3. Step 3: Cross multiply
   2,015.78x = 3,018.27 × 1,182.16
4. Step 4: Simplify right side
   2,015.78x = 3,568,067.72
5. Step 5: Solve for x
   x = 3,568,067.72/2,015.78
6. Step 6: Final answer
   x = 1,770.07