Finding the Fourth Proportional to 1,168.86, 1,613.27 and 671.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.86 : 1,613.27 = 671.84 : x
2. Step 2: Convert to fraction form
   1,168.86/1,613.27 = 671.84/x
3. Step 3: Cross multiply
   1,168.86x = 1,613.27 × 671.84
4. Step 4: Simplify right side
   1,168.86x = 1,083,859.32
5. Step 5: Solve for x
   x = 1,083,859.32/1,168.86
6. Step 6: Final answer
   x = 927.28