Finding the Fourth Proportional to 1,020.24, 1,529.85 and 714.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020.24 : 1,529.85 = 714.06 : x
2. Step 2: Convert to fraction form
   1,020.24/1,529.85 = 714.06/x
3. Step 3: Cross multiply
   1,020.24x = 1,529.85 × 714.06
4. Step 4: Simplify right side
   1,020.24x = 1,092,404.69
5. Step 5: Solve for x
   x = 1,092,404.69/1,020.24
6. Step 6: Final answer
   x = 1,070.73