Finding the Fourth Proportional to 2,315.31, 3,472.83 and 756.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.31 : 3,472.83 = 756.33 : x
2. Step 2: Convert to fraction form
   2,315.31/3,472.83 = 756.33/x
3. Step 3: Cross multiply
   2,315.31x = 3,472.83 × 756.33
4. Step 4: Simplify right side
   2,315.31x = 2,626,605.51
5. Step 5: Solve for x
   x = 2,626,605.51/2,315.31
6. Step 6: Final answer
   x = 1,134.45