Finding the Fourth Proportional to 3,179.92, 4,768.56 and 1,231

Step by Step Solution

1. Step 1: Write the proportion equation
   3,179.92 : 4,768.56 = 1,231 : x
2. Step 2: Convert to fraction form
   3,179.92/4,768.56 = 1,231/x
3. Step 3: Cross multiply
   3,179.92x = 4,768.56 × 1,231
4. Step 4: Simplify right side
   3,179.92x = 5,870,097.36
5. Step 5: Solve for x
   x = 5,870,097.36/3,179.92
6. Step 6: Final answer
   x = 1,845.99