Finding the Fourth Proportional to 2,083.49, 3,128.02 and 1,805.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.49 : 3,128.02 = 1,805.36 : x
2. Step 2: Convert to fraction form
   2,083.49/3,128.02 = 1,805.36/x
3. Step 3: Cross multiply
   2,083.49x = 3,128.02 × 1,805.36
4. Step 4: Simplify right side
   2,083.49x = 5,647,182.03
5. Step 5: Solve for x
   x = 5,647,182.03/2,083.49
6. Step 6: Final answer
   x = 2,710.45