Finding the Fourth Proportional to 3,856.89, 5,322.55 and 2,088.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,856.89 : 5,322.55 = 2,088.54 : x
2. Step 2: Convert to fraction form
   3,856.89/5,322.55 = 2,088.54/x
3. Step 3: Cross multiply
   3,856.89x = 5,322.55 × 2,088.54
4. Step 4: Simplify right side
   3,856.89x = 11,116,358.58
5. Step 5: Solve for x
   x = 11,116,358.58/3,856.89
6. Step 6: Final answer
   x = 2,882.21