Finding the Fourth Proportional to 2,315.32, 3,195.54 and 2,238.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.32 : 3,195.54 = 2,238.43 : x
2. Step 2: Convert to fraction form
   2,315.32/3,195.54 = 2,238.43/x
3. Step 3: Cross multiply
   2,315.32x = 3,195.54 × 2,238.43
4. Step 4: Simplify right side
   2,315.32x = 7,152,992.60
5. Step 5: Solve for x
   x = 7,152,992.60/2,315.32
6. Step 6: Final answer
   x = 3,089.42