Finding the Fourth Proportional to 1,035.91, 1,429.59 and 570.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035.91 : 1,429.59 = 570.16 : x
2. Step 2: Convert to fraction form
   1,035.91/1,429.59 = 570.16/x
3. Step 3: Cross multiply
   1,035.91x = 1,429.59 × 570.16
4. Step 4: Simplify right side
   1,035.91x = 815,095.03
5. Step 5: Solve for x
   x = 815,095.03/1,035.91
6. Step 6: Final answer
   x = 786.84