Finding the Fourth Proportional to 2,910.57, 4,366.66 and 964.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,910.57 : 4,366.66 = 964.14 : x
2. Step 2: Convert to fraction form
   2,910.57/4,366.66 = 964.14/x
3. Step 3: Cross multiply
   2,910.57x = 4,366.66 × 964.14
4. Step 4: Simplify right side
   2,910.57x = 4,210,071.57
5. Step 5: Solve for x
   x = 4,210,071.57/2,910.57
6. Step 6: Final answer
   x = 1,446.48