Finding the Fourth Proportional to 946.69, 1,419.83 and 672.00

Step by Step Solution

1. Step 1: Write the proportion equation
   946.69 : 1,419.83 = 672.00 : x
2. Step 2: Convert to fraction form
   946.69/1,419.83 = 672.00/x
3. Step 3: Cross multiply
   946.69x = 1,419.83 × 672.00
4. Step 4: Simplify right side
   946.69x = 954,119.60
5. Step 5: Solve for x
   x = 954,119.60/946.69
6. Step 6: Final answer
   x = 1,007.85