Finding the Fourth Proportional to 2,019.36, 2,786.80 and 1,273.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.36 : 2,786.80 = 1,273.22 : x
2. Step 2: Convert to fraction form
   2,019.36/2,786.80 = 1,273.22/x
3. Step 3: Cross multiply
   2,019.36x = 2,786.80 × 1,273.22
4. Step 4: Simplify right side
   2,019.36x = 3,548,209.50
5. Step 5: Solve for x
   x = 3,548,209.50/2,019.36
6. Step 6: Final answer
   x = 1,757.10