Finding the Fourth Proportional to 3,856.32, 5,321.76 and 2,365.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,856.32 : 5,321.76 = 2,365.12 : x
2. Step 2: Convert to fraction form
   3,856.32/5,321.76 = 2,365.12/x
3. Step 3: Cross multiply
   3,856.32x = 5,321.76 × 2,365.12
4. Step 4: Simplify right side
   3,856.32x = 12,586,601.01
5. Step 5: Solve for x
   x = 12,586,601.01/3,856.32
6. Step 6: Final answer
   x = 3,263.89