Finding the Fourth Proportional to 1,323.37, 1,984.89 and 768.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.37 : 1,984.89 = 768.38 : x
2. Step 2: Convert to fraction form
   1,323.37/1,984.89 = 768.38/x
3. Step 3: Cross multiply
   1,323.37x = 1,984.89 × 768.38
4. Step 4: Simplify right side
   1,323.37x = 1,525,149.58
5. Step 5: Solve for x
   x = 1,525,149.58/1,323.37
6. Step 6: Final answer
   x = 1,152.48