Finding the Fourth Proportional to 2,168.94, 2,992.34 and 1,423.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.94 : 2,992.34 = 1,423.32 : x
2. Step 2: Convert to fraction form
   2,168.94/2,992.34 = 1,423.32/x
3. Step 3: Cross multiply
   2,168.94x = 2,992.34 × 1,423.32
4. Step 4: Simplify right side
   2,168.94x = 4,259,049.71
5. Step 5: Solve for x
   x = 4,259,049.71/2,168.94
6. Step 6: Final answer
   x = 1,963.65