Finding the Fourth Proportional to 2,019.42, 2,786.81 and 1,135.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.42 : 2,786.81 = 1,135.44 : x
2. Step 2: Convert to fraction form
   2,019.42/2,786.81 = 1,135.44/x
3. Step 3: Cross multiply
   2,019.42x = 2,786.81 × 1,135.44
4. Step 4: Simplify right side
   2,019.42x = 3,164,249.87
5. Step 5: Solve for x
   x = 3,164,249.87/2,019.42
6. Step 6: Final answer
   x = 1,566.91