Finding the Fourth Proportional to 1,397.82, 1,929.03 and 768.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.82 : 1,929.03 = 768.37 : x
2. Step 2: Convert to fraction form
   1,397.82/1,929.03 = 768.37/x
3. Step 3: Cross multiply
   1,397.82x = 1,929.03 × 768.37
4. Step 4: Simplify right side
   1,397.82x = 1,482,203.59
5. Step 5: Solve for x
   x = 1,482,203.59/1,397.82
6. Step 6: Final answer
   x = 1,060.37