Finding the Fourth Proportional to 3,914.58, 5,401.89 and 2,236.26

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.58 : 5,401.89 = 2,236.26 : x
2. Step 2: Convert to fraction form
   3,914.58/5,401.89 = 2,236.26/x
3. Step 3: Cross multiply
   3,914.58x = 5,401.89 × 2,236.26
4. Step 4: Simplify right side
   3,914.58x = 12,080,030.53
5. Step 5: Solve for x
   x = 12,080,030.53/3,914.58
6. Step 6: Final answer
   x = 3,085.91