Finding the Fourth Proportional to 2,019.40, 2,786.60 and 1,233.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.40 : 2,786.60 = 1,233.30 : x
2. Step 2: Convert to fraction form
   2,019.40/2,786.60 = 1,233.30/x
3. Step 3: Cross multiply
   2,019.40x = 2,786.60 × 1,233.30
4. Step 4: Simplify right side
   2,019.40x = 3,436,713.78
5. Step 5: Solve for x
   x = 3,436,713.78/2,019.40
6. Step 6: Final answer
   x = 1,701.85