Finding the Fourth Proportional to 3,856.81, 5,322.42 and 2,088.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,856.81 : 5,322.42 = 2,088.42 : x
2. Step 2: Convert to fraction form
   3,856.81/5,322.42 = 2,088.42/x
3. Step 3: Cross multiply
   3,856.81x = 5,322.42 × 2,088.42
4. Step 4: Simplify right side
   3,856.81x = 11,115,421.76
5. Step 5: Solve for x
   x = 11,115,421.76/3,856.81
6. Step 6: Final answer
   x = 2,882.02