Finding the Fourth Proportional to 2,315, 3,457.72 and 2,095.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315 : 3,457.72 = 2,095.28 : x
2. Step 2: Convert to fraction form
   2,315/3,457.72 = 2,095.28/x
3. Step 3: Cross multiply
   2,315x = 3,457.72 × 2,095.28
4. Step 4: Simplify right side
   2,315x = 7,244,891.56
5. Step 5: Solve for x
   x = 7,244,891.56/2,315
6. Step 6: Final answer
   x = 3,129.54