Finding the Fourth Proportional to 2,018.98, 2,786.26 and 1,180.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.98 : 2,786.26 = 1,180.22 : x
2. Step 2: Convert to fraction form
   2,018.98/2,786.26 = 1,180.22/x
3. Step 3: Cross multiply
   2,018.98x = 2,786.26 × 1,180.22
4. Step 4: Simplify right side
   2,018.98x = 3,288,399.78
5. Step 5: Solve for x
   x = 3,288,399.78/2,018.98
6. Step 6: Final answer
   x = 1,628.74