Finding the Fourth Proportional to 3,980.46, 5,969.06 and 1,729.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.46 : 5,969.06 = 1,729.14 : x
2. Step 2: Convert to fraction form
   3,980.46/5,969.06 = 1,729.14/x
3. Step 3: Cross multiply
   3,980.46x = 5,969.06 × 1,729.14
4. Step 4: Simplify right side
   3,980.46x = 10,321,315.86
5. Step 5: Solve for x
   x = 10,321,315.86/3,980.46
6. Step 6: Final answer
   x = 2,592.99