Finding the Fourth Proportional to 2,396.32, 3,591.60 and 856.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,396.32 : 3,591.60 = 856.48 : x
2. Step 2: Convert to fraction form
   2,396.32/3,591.60 = 856.48/x
3. Step 3: Cross multiply
   2,396.32x = 3,591.60 × 856.48
4. Step 4: Simplify right side
   2,396.32x = 3,076,133.57
5. Step 5: Solve for x
   x = 3,076,133.57/2,396.32
6. Step 6: Final answer
   x = 1,283.69