Finding the Fourth Proportional to 2,208.18, 3,047.16 and 1,683.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.18 : 3,047.16 = 1,683.30 : x
2. Step 2: Convert to fraction form
   2,208.18/3,047.16 = 1,683.30/x
3. Step 3: Cross multiply
   2,208.18x = 3,047.16 × 1,683.30
4. Step 4: Simplify right side
   2,208.18x = 5,129,284.43
5. Step 5: Solve for x
   x = 5,129,284.43/2,208.18
6. Step 6: Final answer
   x = 2,322.86