Finding the Fourth Proportional to 2,095.72, 3,144.22 and 1,228.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.72 : 3,144.22 = 1,228.20 : x
2. Step 2: Convert to fraction form
   2,095.72/3,144.22 = 1,228.20/x
3. Step 3: Cross multiply
   2,095.72x = 3,144.22 × 1,228.20
4. Step 4: Simplify right side
   2,095.72x = 3,861,731.00
5. Step 5: Solve for x
   x = 3,861,731.00/2,095.72
6. Step 6: Final answer
   x = 1,842.68