Finding the Fourth Proportional to 2,167.88, 2,992.91 and 1,662.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167.88 : 2,992.91 = 1,662.80 : x
2. Step 2: Convert to fraction form
   2,167.88/2,992.91 = 1,662.80/x
3. Step 3: Cross multiply
   2,167.88x = 2,992.91 × 1,662.80
4. Step 4: Simplify right side
   2,167.88x = 4,976,587.47
5. Step 5: Solve for x
   x = 4,976,587.47/2,167.88
6. Step 6: Final answer
   x = 2,295.61