Finding the Fourth Proportional to 2,168.34, 2,992.20 and 1,284.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.34 : 2,992.20 = 1,284.24 : x
2. Step 2: Convert to fraction form
   2,168.34/2,992.20 = 1,284.24/x
3. Step 3: Cross multiply
   2,168.34x = 2,992.20 × 1,284.24
4. Step 4: Simplify right side
   2,168.34x = 3,842,702.93
5. Step 5: Solve for x
   x = 3,842,702.93/2,168.34
6. Step 6: Final answer
   x = 1,772.19