Finding the Fourth Proportional to 2,005.98, 2,768.36 and 1,121.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005.98 : 2,768.36 = 1,121.73 : x
2. Step 2: Convert to fraction form
   2,005.98/2,768.36 = 1,121.73/x
3. Step 3: Cross multiply
   2,005.98x = 2,768.36 × 1,121.73
4. Step 4: Simplify right side
   2,005.98x = 3,105,346.85
5. Step 5: Solve for x
   x = 3,105,346.85/2,005.98
6. Step 6: Final answer
   x = 1,548.04