Finding the Fourth Proportional to 1,168.57, 1,612.32 and 671.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.57 : 1,612.32 = 671.09 : x
2. Step 2: Convert to fraction form
   1,168.57/1,612.32 = 671.09/x
3. Step 3: Cross multiply
   1,168.57x = 1,612.32 × 671.09
4. Step 4: Simplify right side
   1,168.57x = 1,082,011.83
5. Step 5: Solve for x
   x = 1,082,011.83/1,168.57
6. Step 6: Final answer
   x = 925.93