Finding the Fourth Proportional to 1,036.26, 1,429.98 and 570.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.26 : 1,429.98 = 570.54 : x
2. Step 2: Convert to fraction form
   1,036.26/1,429.98 = 570.54/x
3. Step 3: Cross multiply
   1,036.26x = 1,429.98 × 570.54
4. Step 4: Simplify right side
   1,036.26x = 815,860.79
5. Step 5: Solve for x
   x = 815,860.79/1,036.26
6. Step 6: Final answer
   x = 787.31