Finding the Fourth Proportional to 1,323.33, 1,826.15 and 763.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.33 : 1,826.15 = 763.72 : x
2. Step 2: Convert to fraction form
   1,323.33/1,826.15 = 763.72/x
3. Step 3: Cross multiply
   1,323.33x = 1,826.15 × 763.72
4. Step 4: Simplify right side
   1,323.33x = 1,394,658.89
5. Step 5: Solve for x
   x = 1,394,658.89/1,323.33
6. Step 6: Final answer
   x = 1,053.90