Finding the Fourth Proportional to 2,558.39, 3,830.29 and 2,168.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.39 : 3,830.29 = 2,168.37 : x
2. Step 2: Convert to fraction form
   2,558.39/3,830.29 = 2,168.37/x
3. Step 3: Cross multiply
   2,558.39x = 3,830.29 × 2,168.37
4. Step 4: Simplify right side
   2,558.39x = 8,305,480.51
5. Step 5: Solve for x
   x = 8,305,480.51/2,558.39
6. Step 6: Final answer
   x = 3,246.38