Finding the Fourth Proportional to 2,389.69, 3,298.49 and 1,683.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.69 : 3,298.49 = 1,683.37 : x
2. Step 2: Convert to fraction form
   2,389.69/3,298.49 = 1,683.37/x
3. Step 3: Cross multiply
   2,389.69x = 3,298.49 × 1,683.37
4. Step 4: Simplify right side
   2,389.69x = 5,552,579.11
5. Step 5: Solve for x
   x = 5,552,579.11/2,389.69
6. Step 6: Final answer
   x = 2,323.56