Finding the Fourth Proportional to 2,018.46, 2,786.41 and 1,355.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.46 : 2,786.41 = 1,355.77 : x
2. Step 2: Convert to fraction form
   2,018.46/2,786.41 = 1,355.77/x
3. Step 3: Cross multiply
   2,018.46x = 2,786.41 × 1,355.77
4. Step 4: Simplify right side
   2,018.46x = 3,777,731.09
5. Step 5: Solve for x
   x = 3,777,731.09/2,018.46
6. Step 6: Final answer
   x = 1,871.59