Finding the Fourth Proportional to 3,969.81, 5,955.12 and 1,337.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.81 : 5,955.12 = 1,337.31 : x
2. Step 2: Convert to fraction form
   3,969.81/5,955.12 = 1,337.31/x
3. Step 3: Cross multiply
   3,969.81x = 5,955.12 × 1,337.31
4. Step 4: Simplify right side
   3,969.81x = 7,963,841.53
5. Step 5: Solve for x
   x = 7,963,841.53/3,969.81
6. Step 6: Final answer
   x = 2,006.10