Finding the Fourth Proportional to 2,942.28, 4,062.72 and 1,896.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.28 : 4,062.72 = 1,896.12 : x
2. Step 2: Convert to fraction form
   2,942.28/4,062.72 = 1,896.12/x
3. Step 3: Cross multiply
   2,942.28x = 4,062.72 × 1,896.12
4. Step 4: Simplify right side
   2,942.28x = 7,703,404.65
5. Step 5: Solve for x
   x = 7,703,404.65/2,942.28
6. Step 6: Final answer
   x = 2,618.18