Finding the Fourth Proportional to 1,510.83, 2,267.15 and 817.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.83 : 2,267.15 = 817.49 : x
2. Step 2: Convert to fraction form
   1,510.83/2,267.15 = 817.49/x
3. Step 3: Cross multiply
   1,510.83x = 2,267.15 × 817.49
4. Step 4: Simplify right side
   1,510.83x = 1,853,357.03
5. Step 5: Solve for x
   x = 1,853,357.03/1,510.83
6. Step 6: Final answer
   x = 1,226.71