Finding the Fourth Proportional to 2,749.94, 4,122.17 and 1,286.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,749.94 : 4,122.17 = 1,286.47 : x
2. Step 2: Convert to fraction form
   2,749.94/4,122.17 = 1,286.47/x
3. Step 3: Cross multiply
   2,749.94x = 4,122.17 × 1,286.47
4. Step 4: Simplify right side
   2,749.94x = 5,303,048.04
5. Step 5: Solve for x
   x = 5,303,048.04/2,749.94
6. Step 6: Final answer
   x = 1,928.42