Finding the Fourth Proportional to 1,064.37, 1,469.43 and 691.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.37 : 1,469.43 = 691.68 : x
2. Step 2: Convert to fraction form
   1,064.37/1,469.43 = 691.68/x
3. Step 3: Cross multiply
   1,064.37x = 1,469.43 × 691.68
4. Step 4: Simplify right side
   1,064.37x = 1,016,375.34
5. Step 5: Solve for x
   x = 1,016,375.34/1,064.37
6. Step 6: Final answer
   x = 954.91