Finding the Fourth Proportional to 3,943.82, 5,914.05 and 2,164.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,943.82 : 5,914.05 = 2,164.43 : x
2. Step 2: Convert to fraction form
   3,943.82/5,914.05 = 2,164.43/x
3. Step 3: Cross multiply
   3,943.82x = 5,914.05 × 2,164.43
4. Step 4: Simplify right side
   3,943.82x = 12,800,517.67
5. Step 5: Solve for x
   x = 12,800,517.67/3,943.82
6. Step 6: Final answer
   x = 3,245.72