Finding the Fourth Proportional to 2,019.55, 2,787.04 and 1,135.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.55 : 2,787.04 = 1,135.41 : x
2. Step 2: Convert to fraction form
   2,019.55/2,787.04 = 1,135.41/x
3. Step 3: Cross multiply
   2,019.55x = 2,787.04 × 1,135.41
4. Step 4: Simplify right side
   2,019.55x = 3,164,433.09
5. Step 5: Solve for x
   x = 3,164,433.09/2,019.55
6. Step 6: Final answer
   x = 1,566.90