Finding the Fourth Proportional to 1,301.48, 1,951.52 and 570.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.48 : 1,951.52 = 570.21 : x
2. Step 2: Convert to fraction form
   1,301.48/1,951.52 = 570.21/x
3. Step 3: Cross multiply
   1,301.48x = 1,951.52 × 570.21
4. Step 4: Simplify right side
   1,301.48x = 1,112,766.46
5. Step 5: Solve for x
   x = 1,112,766.46/1,301.48
6. Step 6: Final answer
   x = 855.00