Finding the Fourth Proportional to 1,317.50, 1,818.50 and 758.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317.50 : 1,818.50 = 758.03 : x
2. Step 2: Convert to fraction form
   1,317.50/1,818.50 = 758.03/x
3. Step 3: Cross multiply
   1,317.50x = 1,818.50 × 758.03
4. Step 4: Simplify right side
   1,317.50x = 1,378,477.56
5. Step 5: Solve for x
   x = 1,378,477.56/1,317.50
6. Step 6: Final answer
   x = 1,046.28