Finding the Fourth Proportional to 2,019.62, 2,787.22 and 1,135.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.62 : 2,787.22 = 1,135.50 : x
2. Step 2: Convert to fraction form
   2,019.62/2,787.22 = 1,135.50/x
3. Step 3: Cross multiply
   2,019.62x = 2,787.22 × 1,135.50
4. Step 4: Simplify right side
   2,019.62x = 3,164,888.31
5. Step 5: Solve for x
   x = 3,164,888.31/2,019.62
6. Step 6: Final answer
   x = 1,567.07