Finding the Fourth Proportional to 1,020.98, 1,532.72 and 673.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020.98 : 1,532.72 = 673.22 : x
2. Step 2: Convert to fraction form
   1,020.98/1,532.72 = 673.22/x
3. Step 3: Cross multiply
   1,020.98x = 1,532.72 × 673.22
4. Step 4: Simplify right side
   1,020.98x = 1,031,857.76
5. Step 5: Solve for x
   x = 1,031,857.76/1,020.98
6. Step 6: Final answer
   x = 1,010.65