Finding the Fourth Proportional to 2,021.82, 2,789.94 and 1,137.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.82 : 2,789.94 = 1,137.49 : x
2. Step 2: Convert to fraction form
   2,021.82/2,789.94 = 1,137.49/x
3. Step 3: Cross multiply
   2,021.82x = 2,789.94 × 1,137.49
4. Step 4: Simplify right side
   2,021.82x = 3,173,528.85
5. Step 5: Solve for x
   x = 3,173,528.85/2,021.82
6. Step 6: Final answer
   x = 1,569.64