Finding the Fourth Proportional to 1,018.47, 1,530.15 and 653.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.47 : 1,530.15 = 653.97 : x
2. Step 2: Convert to fraction form
   1,018.47/1,530.15 = 653.97/x
3. Step 3: Cross multiply
   1,018.47x = 1,530.15 × 653.97
4. Step 4: Simplify right side
   1,018.47x = 1,000,666.33
5. Step 5: Solve for x
   x = 1,000,666.33/1,018.47
6. Step 6: Final answer
   x = 982.52