Finding the Fourth Proportional to 1,036.06, 1,429.75 and 570.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.06 : 1,429.75 = 570.30 : x
2. Step 2: Convert to fraction form
   1,036.06/1,429.75 = 570.30/x
3. Step 3: Cross multiply
   1,036.06x = 1,429.75 × 570.30
4. Step 4: Simplify right side
   1,036.06x = 815,386.43
5. Step 5: Solve for x
   x = 815,386.43/1,036.06
6. Step 6: Final answer
   x = 787.01