Finding the Fourth Proportional to 2,062.81, 3,091.33 and 964.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.81 : 3,091.33 = 964.45 : x
2. Step 2: Convert to fraction form
   2,062.81/3,091.33 = 964.45/x
3. Step 3: Cross multiply
   2,062.81x = 3,091.33 × 964.45
4. Step 4: Simplify right side
   2,062.81x = 2,981,433.22
5. Step 5: Solve for x
   x = 2,981,433.22/2,062.81
6. Step 6: Final answer
   x = 1,445.33