Finding the Fourth Proportional to 2,168.65, 2,992.75 and 1,173.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.65 : 2,992.75 = 1,173.94 : x
2. Step 2: Convert to fraction form
   2,168.65/2,992.75 = 1,173.94/x
3. Step 3: Cross multiply
   2,168.65x = 2,992.75 × 1,173.94
4. Step 4: Simplify right side
   2,168.65x = 3,513,308.94
5. Step 5: Solve for x
   x = 3,513,308.94/2,168.65
6. Step 6: Final answer
   x = 1,620.05