Finding the Fourth Proportional to 2,856.47, 4,286.12 and 1,395.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,856.47 : 4,286.12 = 1,395.59 : x
2. Step 2: Convert to fraction form
   2,856.47/4,286.12 = 1,395.59/x
3. Step 3: Cross multiply
   2,856.47x = 4,286.12 × 1,395.59
4. Step 4: Simplify right side
   2,856.47x = 5,981,637.80
5. Step 5: Solve for x
   x = 5,981,637.80/2,856.47
6. Step 6: Final answer
   x = 2,094.07