Finding the Fourth Proportional to 2,018.91, 2,786.16 and 1,180.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.91 : 2,786.16 = 1,180.23 : x
2. Step 2: Convert to fraction form
   2,018.91/2,786.16 = 1,180.23/x
3. Step 3: Cross multiply
   2,018.91x = 2,786.16 × 1,180.23
4. Step 4: Simplify right side
   2,018.91x = 3,288,309.62
5. Step 5: Solve for x
   x = 3,288,309.62/2,018.91
6. Step 6: Final answer
   x = 1,628.75