Finding the Fourth Proportional to 2,315.15, 3,473.24 and 671.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.15 : 3,473.24 = 671.82 : x
2. Step 2: Convert to fraction form
   2,315.15/3,473.24 = 671.82/x
3. Step 3: Cross multiply
   2,315.15x = 3,473.24 × 671.82
4. Step 4: Simplify right side
   2,315.15x = 2,333,388.74
5. Step 5: Solve for x
   x = 2,333,388.74/2,315.15
6. Step 6: Final answer
   x = 1,007.88