Finding the Fourth Proportional to 1,178.04, 1,625.82 and 680.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178.04 : 1,625.82 = 680.83 : x
2. Step 2: Convert to fraction form
   1,178.04/1,625.82 = 680.83/x
3. Step 3: Cross multiply
   1,178.04x = 1,625.82 × 680.83
4. Step 4: Simplify right side
   1,178.04x = 1,106,907.03
5. Step 5: Solve for x
   x = 1,106,907.03/1,178.04
6. Step 6: Final answer
   x = 939.62