Finding the Fourth Proportional to 2,019.50, 2,787.41 and 1,234.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.50 : 2,787.41 = 1,234.21 : x
2. Step 2: Convert to fraction form
   2,019.50/2,787.41 = 1,234.21/x
3. Step 3: Cross multiply
   2,019.50x = 2,787.41 × 1,234.21
4. Step 4: Simplify right side
   2,019.50x = 3,440,249.30
5. Step 5: Solve for x
   x = 3,440,249.30/2,019.50
6. Step 6: Final answer
   x = 1,703.52