Finding the Fourth Proportional to 1,064.46, 1,468.42 and 691.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.46 : 1,468.42 = 691.65 : x
2. Step 2: Convert to fraction form
   1,064.46/1,468.42 = 691.65/x
3. Step 3: Cross multiply
   1,064.46x = 1,468.42 × 691.65
4. Step 4: Simplify right side
   1,064.46x = 1,015,632.69
5. Step 5: Solve for x
   x = 1,015,632.69/1,064.46
6. Step 6: Final answer
   x = 954.13