Finding the Fourth Proportional to 2,021.05, 2,789.69 and 1,182.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.05 : 2,789.69 = 1,182.09 : x
2. Step 2: Convert to fraction form
   2,021.05/2,789.69 = 1,182.09/x
3. Step 3: Cross multiply
   2,021.05x = 2,789.69 × 1,182.09
4. Step 4: Simplify right side
   2,021.05x = 3,297,664.65
5. Step 5: Solve for x
   x = 3,297,664.65/2,021.05
6. Step 6: Final answer
   x = 1,631.66