Finding the Fourth Proportional to 2,187.04, 3,018.28 and 1,255.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.04 : 3,018.28 = 1,255.68 : x
2. Step 2: Convert to fraction form
   2,187.04/3,018.28 = 1,255.68/x
3. Step 3: Cross multiply
   2,187.04x = 3,018.28 × 1,255.68
4. Step 4: Simplify right side
   2,187.04x = 3,789,993.83
5. Step 5: Solve for x
   x = 3,789,993.83/2,187.04
6. Step 6: Final answer
   x = 1,732.93