Finding the Fourth Proportional to 2,057.96, 3,084.16 and 959.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.96 : 3,084.16 = 959.94 : x
2. Step 2: Convert to fraction form
   2,057.96/3,084.16 = 959.94/x
3. Step 3: Cross multiply
   2,057.96x = 3,084.16 × 959.94
4. Step 4: Simplify right side
   2,057.96x = 2,960,608.55
5. Step 5: Solve for x
   x = 2,960,608.55/2,057.96
6. Step 6: Final answer
   x = 1,438.61