Finding the Fourth Proportional to 3,993.67, 5,981.39 and 3,526.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.67 : 5,981.39 = 3,526.50 : x
2. Step 2: Convert to fraction form
   3,993.67/5,981.39 = 3,526.50/x
3. Step 3: Cross multiply
   3,993.67x = 5,981.39 × 3,526.50
4. Step 4: Simplify right side
   3,993.67x = 21,093,354.20
5. Step 5: Solve for x
   x = 21,093,354.20/3,993.67
6. Step 6: Final answer
   x = 5,281.70