Finding the Fourth Proportional to 1,067.69, 1,472.65 and 693.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.69 : 1,472.65 = 693.98 : x
2. Step 2: Convert to fraction form
   1,067.69/1,472.65 = 693.98/x
3. Step 3: Cross multiply
   1,067.69x = 1,472.65 × 693.98
4. Step 4: Simplify right side
   1,067.69x = 1,021,989.65
5. Step 5: Solve for x
   x = 1,021,989.65/1,067.69
6. Step 6: Final answer
   x = 957.20