Finding the Fourth Proportional to 2,168.71, 2,992.82 and 1,173.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.71 : 2,992.82 = 1,173.99 : x
2. Step 2: Convert to fraction form
   2,168.71/2,992.82 = 1,173.99/x
3. Step 3: Cross multiply
   2,168.71x = 2,992.82 × 1,173.99
4. Step 4: Simplify right side
   2,168.71x = 3,513,540.75
5. Step 5: Solve for x
   x = 3,513,540.75/2,168.71
6. Step 6: Final answer
   x = 1,620.11