Finding the Fourth Proportional to 2,019.69, 2,787.20 and 1,135.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.69 : 2,787.20 = 1,135.52 : x
2. Step 2: Convert to fraction form
   2,019.69/2,787.20 = 1,135.52/x
3. Step 3: Cross multiply
   2,019.69x = 2,787.20 × 1,135.52
4. Step 4: Simplify right side
   2,019.69x = 3,164,901.73
5. Step 5: Solve for x
   x = 3,164,901.73/2,019.69
6. Step 6: Final answer
   x = 1,567.02