Finding the Fourth Proportional to 3,980.97, 5,931.95 and 3,544.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.97 : 5,931.95 = 3,544.79 : x
2. Step 2: Convert to fraction form
   3,980.97/5,931.95 = 3,544.79/x
3. Step 3: Cross multiply
   3,980.97x = 5,931.95 × 3,544.79
4. Step 4: Simplify right side
   3,980.97x = 21,027,469.66
5. Step 5: Solve for x
   x = 21,027,469.66/3,980.97
6. Step 6: Final answer
   x = 5,282.00