Finding the Fourth Proportional to 1,035.85, 1,429.48 and 570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035.85 : 1,429.48 = 570.10 : x
2. Step 2: Convert to fraction form
   1,035.85/1,429.48 = 570.10/x
3. Step 3: Cross multiply
   1,035.85x = 1,429.48 × 570.10
4. Step 4: Simplify right side
   1,035.85x = 814,941.55
5. Step 5: Solve for x
   x = 814,941.55/1,035.85
6. Step 6: Final answer
   x = 786.74