Finding the Fourth Proportional to 3,856.50, 5,321.94 and 2,088.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,856.50 : 5,321.94 = 2,088.10 : x
2. Step 2: Convert to fraction form
   3,856.50/5,321.94 = 2,088.10/x
3. Step 3: Cross multiply
   3,856.50x = 5,321.94 × 2,088.10
4. Step 4: Simplify right side
   3,856.50x = 11,112,742.91
5. Step 5: Solve for x
   x = 11,112,742.91/3,856.50
6. Step 6: Final answer
   x = 2,881.56