Finding the Fourth Proportional to 3,729.31, 5,144.72 and 2,984.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,729.31 : 5,144.72 = 2,984.31 : x
2. Step 2: Convert to fraction form
   3,729.31/5,144.72 = 2,984.31/x
3. Step 3: Cross multiply
   3,729.31x = 5,144.72 × 2,984.31
4. Step 4: Simplify right side
   3,729.31x = 15,353,424.42
5. Step 5: Solve for x
   x = 15,353,424.42/3,729.31
6. Step 6: Final answer
   x = 4,116.96