Finding the Fourth Proportional to 2,056.50, 3,081.24 and 960.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.50 : 3,081.24 = 960.30 : x
2. Step 2: Convert to fraction form
   2,056.50/3,081.24 = 960.30/x
3. Step 3: Cross multiply
   2,056.50x = 3,081.24 × 960.30
4. Step 4: Simplify right side
   2,056.50x = 2,958,914.77
5. Step 5: Solve for x
   x = 2,958,914.77/2,056.50
6. Step 6: Final answer
   x = 1,438.81