Finding the Fourth Proportional to 1,035.89, 1,429.50 and 570.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035.89 : 1,429.50 = 570.14 : x
2. Step 2: Convert to fraction form
   1,035.89/1,429.50 = 570.14/x
3. Step 3: Cross multiply
   1,035.89x = 1,429.50 × 570.14
4. Step 4: Simplify right side
   1,035.89x = 815,015.13
5. Step 5: Solve for x
   x = 815,015.13/1,035.89
6. Step 6: Final answer
   x = 786.78