Finding the Fourth Proportional to 3,524.18, 5,288.83 and 2,839.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,524.18 : 5,288.83 = 2,839.12 : x
2. Step 2: Convert to fraction form
   3,524.18/5,288.83 = 2,839.12/x
3. Step 3: Cross multiply
   3,524.18x = 5,288.83 × 2,839.12
4. Step 4: Simplify right side
   3,524.18x = 15,015,617.58
5. Step 5: Solve for x
   x = 15,015,617.58/3,524.18
6. Step 6: Final answer
   x = 4,260.74