Finding the Fourth Proportional to 3,940.89, 5,911.93 and 1,343.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940.89 : 5,911.93 = 1,343.22 : x
2. Step 2: Convert to fraction form
   3,940.89/5,911.93 = 1,343.22/x
3. Step 3: Cross multiply
   3,940.89x = 5,911.93 × 1,343.22
4. Step 4: Simplify right side
   3,940.89x = 7,941,022.61
5. Step 5: Solve for x
   x = 7,941,022.61/3,940.89
6. Step 6: Final answer
   x = 2,015.03