Finding the Fourth Proportional to 3,785.67, 5,647.46 and 3,520.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785.67 : 5,647.46 = 3,520.53 : x
2. Step 2: Convert to fraction form
   3,785.67/5,647.46 = 3,520.53/x
3. Step 3: Cross multiply
   3,785.67x = 5,647.46 × 3,520.53
4. Step 4: Simplify right side
   3,785.67x = 19,882,034.75
5. Step 5: Solve for x
   x = 19,882,034.75/3,785.67
6. Step 6: Final answer
   x = 5,251.92