Finding the Fourth Proportional to 2,127.28, 3,195.72 and 1,262.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127.28 : 3,195.72 = 1,262.16 : x
2. Step 2: Convert to fraction form
   2,127.28/3,195.72 = 1,262.16/x
3. Step 3: Cross multiply
   2,127.28x = 3,195.72 × 1,262.16
4. Step 4: Simplify right side
   2,127.28x = 4,033,509.96
5. Step 5: Solve for x
   x = 4,033,509.96/2,127.28
6. Step 6: Final answer
   x = 1,896.09