Finding the Fourth Proportional to 3,723.69, 5,589.64 and 3,145.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,723.69 : 5,589.64 = 3,145.84 : x
2. Step 2: Convert to fraction form
   3,723.69/5,589.64 = 3,145.84/x
3. Step 3: Cross multiply
   3,723.69x = 5,589.64 × 3,145.84
4. Step 4: Simplify right side
   3,723.69x = 17,584,103.06
5. Step 5: Solve for x
   x = 17,584,103.06/3,723.69
6. Step 6: Final answer
   x = 4,722.23