Finding the Fourth Proportional to 1,035.28, 1,429.25 and 662.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035.28 : 1,429.25 = 662.58 : x
2. Step 2: Convert to fraction form
   1,035.28/1,429.25 = 662.58/x
3. Step 3: Cross multiply
   1,035.28x = 1,429.25 × 662.58
4. Step 4: Simplify right side
   1,035.28x = 946,989.15
5. Step 5: Solve for x
   x = 946,989.15/1,035.28
6. Step 6: Final answer
   x = 914.72