Finding the Fourth Proportional to 2,005.91, 2,768.27 and 1,121.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005.91 : 2,768.27 = 1,121.69 : x
2. Step 2: Convert to fraction form
   2,005.91/2,768.27 = 1,121.69/x
3. Step 3: Cross multiply
   2,005.91x = 2,768.27 × 1,121.69
4. Step 4: Simplify right side
   2,005.91x = 3,105,142.09
5. Step 5: Solve for x
   x = 3,105,142.09/2,005.91
6. Step 6: Final answer
   x = 1,548.00