Finding the Fourth Proportional to 1,168.82, 1,612.65 and 671.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.82 : 1,612.65 = 671.43 : x
2. Step 2: Convert to fraction form
   1,168.82/1,612.65 = 671.43/x
3. Step 3: Cross multiply
   1,168.82x = 1,612.65 × 671.43
4. Step 4: Simplify right side
   1,168.82x = 1,082,781.59
5. Step 5: Solve for x
   x = 1,082,781.59/1,168.82
6. Step 6: Final answer
   x = 926.39