Finding the Fourth Proportional to 2,395.84, 3,594.24 and 856.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,395.84 : 3,594.24 = 856.72 : x
2. Step 2: Convert to fraction form
   2,395.84/3,594.24 = 856.72/x
3. Step 3: Cross multiply
   2,395.84x = 3,594.24 × 856.72
4. Step 4: Simplify right side
   2,395.84x = 3,079,257.29
5. Step 5: Solve for x
   x = 3,079,257.29/2,395.84
6. Step 6: Final answer
   x = 1,285.25