Finding the Fourth Proportional to 3,883.38, 5,825.15 and 961.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,883.38 : 5,825.15 = 961.61 : x
2. Step 2: Convert to fraction form
   3,883.38/5,825.15 = 961.61/x
3. Step 3: Cross multiply
   3,883.38x = 5,825.15 × 961.61
4. Step 4: Simplify right side
   3,883.38x = 5,601,522.49
5. Step 5: Solve for x
   x = 5,601,522.49/3,883.38
6. Step 6: Final answer
   x = 1,442.43