Finding the Fourth Proportional to 2,020.98, 2,787.33 and 1,357.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.98 : 2,787.33 = 1,357.38 : x
2. Step 2: Convert to fraction form
   2,020.98/2,787.33 = 1,357.38/x
3. Step 3: Cross multiply
   2,020.98x = 2,787.33 × 1,357.38
4. Step 4: Simplify right side
   2,020.98x = 3,783,466.00
5. Step 5: Solve for x
   x = 3,783,466.00/2,020.98
6. Step 6: Final answer
   x = 1,872.09