Finding the Fourth Proportional to 2,123.49, 3,185.14 and 1,083.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.49 : 3,185.14 = 1,083.47 : x
2. Step 2: Convert to fraction form
   2,123.49/3,185.14 = 1,083.47/x
3. Step 3: Cross multiply
   2,123.49x = 3,185.14 × 1,083.47
4. Step 4: Simplify right side
   2,123.49x = 3,450,995.04
5. Step 5: Solve for x
   x = 3,450,995.04/2,123.49
6. Step 6: Final answer
   x = 1,625.15