Finding the Fourth Proportional to 2,018.43, 3,003.23 and 1,968.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.43 : 3,003.23 = 1,968.21 : x
2. Step 2: Convert to fraction form
   2,018.43/3,003.23 = 1,968.21/x
3. Step 3: Cross multiply
   2,018.43x = 3,003.23 × 1,968.21
4. Step 4: Simplify right side
   2,018.43x = 5,910,992.24
5. Step 5: Solve for x
   x = 5,910,992.24/2,018.43
6. Step 6: Final answer
   x = 2,928.51