Finding the Fourth Proportional to 2,018.23, 3,025.24 and 1,128.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.23 : 3,025.24 = 1,128.53 : x
2. Step 2: Convert to fraction form
   2,018.23/3,025.24 = 1,128.53/x
3. Step 3: Cross multiply
   2,018.23x = 3,025.24 × 1,128.53
4. Step 4: Simplify right side
   2,018.23x = 3,414,058.11
5. Step 5: Solve for x
   x = 3,414,058.11/2,018.23
6. Step 6: Final answer
   x = 1,691.61