Finding the Fourth Proportional to 2,168.96, 2,993.84 and 1,238.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.96 : 2,993.84 = 1,238.08 : x
2. Step 2: Convert to fraction form
   2,168.96/2,993.84 = 1,238.08/x
3. Step 3: Cross multiply
   2,168.96x = 2,993.84 × 1,238.08
4. Step 4: Simplify right side
   2,168.96x = 3,706,613.43
5. Step 5: Solve for x
   x = 3,706,613.43/2,168.96
6. Step 6: Final answer
   x = 1,708.94