Finding the Fourth Proportional to 3,856.89, 5,322.51 and 2,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,856.89 : 5,322.51 = 2,088.50 : x
2. Step 2: Convert to fraction form
   3,856.89/5,322.51 = 2,088.50/x
3. Step 3: Cross multiply
   3,856.89x = 5,322.51 × 2,088.50
4. Step 4: Simplify right side
   3,856.89x = 11,116,054.05
5. Step 5: Solve for x
   x = 11,116,054.05/3,856.89
6. Step 6: Final answer
   x = 2,882.13