Finding the Fourth Proportional to 3,168.82, 4,753.67 and 977.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,168.82 : 4,753.67 = 977.72 : x
2. Step 2: Convert to fraction form
   3,168.82/4,753.67 = 977.72/x
3. Step 3: Cross multiply
   3,168.82x = 4,753.67 × 977.72
4. Step 4: Simplify right side
   3,168.82x = 4,647,758.23
5. Step 5: Solve for x
   x = 4,647,758.23/3,168.82
6. Step 6: Final answer
   x = 1,466.72