Finding the Fourth Proportional to 2,019.56, 2,786.86 and 1,135.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.56 : 2,786.86 = 1,135.38 : x
2. Step 2: Convert to fraction form
   2,019.56/2,786.86 = 1,135.38/x
3. Step 3: Cross multiply
   2,019.56x = 2,786.86 × 1,135.38
4. Step 4: Simplify right side
   2,019.56x = 3,164,145.11
5. Step 5: Solve for x
   x = 3,164,145.11/2,019.56
6. Step 6: Final answer
   x = 1,566.75