Finding the Fourth Proportional to 1,328.15, 1,832.98 and 768.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328.15 : 1,832.98 = 768.59 : x
2. Step 2: Convert to fraction form
   1,328.15/1,832.98 = 768.59/x
3. Step 3: Cross multiply
   1,328.15x = 1,832.98 × 768.59
4. Step 4: Simplify right side
   1,328.15x = 1,408,807.33
5. Step 5: Solve for x
   x = 1,408,807.33/1,328.15
6. Step 6: Final answer
   x = 1,060.73