Finding the Fourth Proportional to 3,856.77, 5,321.76 and 2,262.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,856.77 : 5,321.76 = 2,262.81 : x
2. Step 2: Convert to fraction form
   3,856.77/5,321.76 = 2,262.81/x
3. Step 3: Cross multiply
   3,856.77x = 5,321.76 × 2,262.81
4. Step 4: Simplify right side
   3,856.77x = 12,042,131.75
5. Step 5: Solve for x
   x = 12,042,131.75/3,856.77
6. Step 6: Final answer
   x = 3,122.34