Finding the Fourth Proportional to 3,118.72, 4,677.27 and 926.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,118.72 : 4,677.27 = 926.86 : x
2. Step 2: Convert to fraction form
   3,118.72/4,677.27 = 926.86/x
3. Step 3: Cross multiply
   3,118.72x = 4,677.27 × 926.86
4. Step 4: Simplify right side
   3,118.72x = 4,335,174.47
5. Step 5: Solve for x
   x = 4,335,174.47/3,118.72
6. Step 6: Final answer
   x = 1,390.05