Finding the Fourth Proportional to 2,946.29, 4,057.83 and 2,315.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,946.29 : 4,057.83 = 2,315.86 : x
2. Step 2: Convert to fraction form
   2,946.29/4,057.83 = 2,315.86/x
3. Step 3: Cross multiply
   2,946.29x = 4,057.83 × 2,315.86
4. Step 4: Simplify right side
   2,946.29x = 9,397,356.04
5. Step 5: Solve for x
   x = 9,397,356.04/2,946.29
6. Step 6: Final answer
   x = 3,189.56