Finding the Fourth Proportional to 1,499.72, 2,251.02 and 817.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.72 : 2,251.02 = 817.16 : x
2. Step 2: Convert to fraction form
   1,499.72/2,251.02 = 817.16/x
3. Step 3: Cross multiply
   1,499.72x = 2,251.02 × 817.16
4. Step 4: Simplify right side
   1,499.72x = 1,839,443.50
5. Step 5: Solve for x
   x = 1,839,443.50/1,499.72
6. Step 6: Final answer
   x = 1,226.52