Finding the Fourth Proportional to 2,061.21, 3,089.66 and 964.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.21 : 3,089.66 = 964.68 : x
2. Step 2: Convert to fraction form
   2,061.21/3,089.66 = 964.68/x
3. Step 3: Cross multiply
   2,061.21x = 3,089.66 × 964.68
4. Step 4: Simplify right side
   2,061.21x = 2,980,528.39
5. Step 5: Solve for x
   x = 2,980,528.39/2,061.21
6. Step 6: Final answer
   x = 1,446.01