Finding the Fourth Proportional to 1,017.69, 1,524.83 and 979.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.69 : 1,524.83 = 979.77 : x
2. Step 2: Convert to fraction form
   1,017.69/1,524.83 = 979.77/x
3. Step 3: Cross multiply
   1,017.69x = 1,524.83 × 979.77
4. Step 4: Simplify right side
   1,017.69x = 1,493,975.75
5. Step 5: Solve for x
   x = 1,493,975.75/1,017.69
6. Step 6: Final answer
   x = 1,468.01