Finding the Fourth Proportional to 1,036.14, 1,429.89 and 570.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.14 : 1,429.89 = 570.39 : x
2. Step 2: Convert to fraction form
   1,036.14/1,429.89 = 570.39/x
3. Step 3: Cross multiply
   1,036.14x = 1,429.89 × 570.39
4. Step 4: Simplify right side
   1,036.14x = 815,594.96
5. Step 5: Solve for x
   x = 815,594.96/1,036.14
6. Step 6: Final answer
   x = 787.15