Finding the Fourth Proportional to 3,168.72, 4,751.82 and 1,219.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,168.72 : 4,751.82 = 1,219.68 : x
2. Step 2: Convert to fraction form
   3,168.72/4,751.82 = 1,219.68/x
3. Step 3: Cross multiply
   3,168.72x = 4,751.82 × 1,219.68
4. Step 4: Simplify right side
   3,168.72x = 5,795,699.82
5. Step 5: Solve for x
   x = 5,795,699.82/3,168.72
6. Step 6: Final answer
   x = 1,829.04