Finding the Fourth Proportional to 3,951.72, 5,927.72 and 1,178.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,951.72 : 5,927.72 = 1,178.42 : x
2. Step 2: Convert to fraction form
   3,951.72/5,927.72 = 1,178.42/x
3. Step 3: Cross multiply
   3,951.72x = 5,927.72 × 1,178.42
4. Step 4: Simplify right side
   3,951.72x = 6,985,308.27
5. Step 5: Solve for x
   x = 6,985,308.27/3,951.72
6. Step 6: Final answer
   x = 1,767.66