Finding the Fourth Proportional to 3,909.82, 5,395.86 and 2,230.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,909.82 : 5,395.86 = 2,230.84 : x
2. Step 2: Convert to fraction form
   3,909.82/5,395.86 = 2,230.84/x
3. Step 3: Cross multiply
   3,909.82x = 5,395.86 × 2,230.84
4. Step 4: Simplify right side
   3,909.82x = 12,037,300.32
5. Step 5: Solve for x
   x = 12,037,300.32/3,909.82
6. Step 6: Final answer
   x = 3,078.74