Finding the Fourth Proportional to 2,168.38, 2,993.76 and 1,670.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.38 : 2,993.76 = 1,670.14 : x
2. Step 2: Convert to fraction form
   2,168.38/2,993.76 = 1,670.14/x
3. Step 3: Cross multiply
   2,168.38x = 2,993.76 × 1,670.14
4. Step 4: Simplify right side
   2,168.38x = 4,999,998.33
5. Step 5: Solve for x
   x = 4,999,998.33/2,168.38
6. Step 6: Final answer
   x = 2,305.87