Finding the Fourth Proportional to 1,017.59, 1,525.15 and 496.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.59 : 1,525.15 = 496.81 : x
2. Step 2: Convert to fraction form
   1,017.59/1,525.15 = 496.81/x
3. Step 3: Cross multiply
   1,017.59x = 1,525.15 × 496.81
4. Step 4: Simplify right side
   1,017.59x = 757,709.77
5. Step 5: Solve for x
   x = 757,709.77/1,017.59
6. Step 6: Final answer
   x = 744.61