Finding the Fourth Proportional to 3,985.76, 5,967.52 and 3,679.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.76 : 5,967.52 = 3,679.52 : x
2. Step 2: Convert to fraction form
   3,985.76/5,967.52 = 3,679.52/x
3. Step 3: Cross multiply
   3,985.76x = 5,967.52 × 3,679.52
4. Step 4: Simplify right side
   3,985.76x = 21,957,609.19
5. Step 5: Solve for x
   x = 21,957,609.19/3,985.76
6. Step 6: Final answer
   x = 5,509.01