Finding the Fourth Proportional to 1,017.48, 1,535.25 and 979.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.48 : 1,535.25 = 979.50 : x
2. Step 2: Convert to fraction form
   1,017.48/1,535.25 = 979.50/x
3. Step 3: Cross multiply
   1,017.48x = 1,535.25 × 979.50
4. Step 4: Simplify right side
   1,017.48x = 1,503,777.38
5. Step 5: Solve for x
   x = 1,503,777.38/1,017.48
6. Step 6: Final answer
   x = 1,477.94