Finding the Fourth Proportional to 1,035.75, 1,429.43 and 570.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035.75 : 1,429.43 = 570.09 : x
2. Step 2: Convert to fraction form
   1,035.75/1,429.43 = 570.09/x
3. Step 3: Cross multiply
   1,035.75x = 1,429.43 × 570.09
4. Step 4: Simplify right side
   1,035.75x = 814,900.90
5. Step 5: Solve for x
   x = 814,900.90/1,035.75
6. Step 6: Final answer
   x = 786.77