Finding the Fourth Proportional to 3,524.24, 5,286.72 and 1,059.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,524.24 : 5,286.72 = 1,059.12 : x
2. Step 2: Convert to fraction form
   3,524.24/5,286.72 = 1,059.12/x
3. Step 3: Cross multiply
   3,524.24x = 5,286.72 × 1,059.12
4. Step 4: Simplify right side
   3,524.24x = 5,599,270.89
5. Step 5: Solve for x
   x = 5,599,270.89/3,524.24
6. Step 6: Final answer
   x = 1,588.79