Finding the Fourth Proportional to 2,208.15, 3,314.15 and 1,168.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.15 : 3,314.15 = 1,168.90 : x
2. Step 2: Convert to fraction form
   2,208.15/3,314.15 = 1,168.90/x
3. Step 3: Cross multiply
   2,208.15x = 3,314.15 × 1,168.90
4. Step 4: Simplify right side
   2,208.15x = 3,873,900.19
5. Step 5: Solve for x
   x = 3,873,900.19/2,208.15
6. Step 6: Final answer
   x = 1,754.36