Finding the Fourth Proportional to 1,499.56, 2,253.32 and 806.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.56 : 2,253.32 = 806.74 : x
2. Step 2: Convert to fraction form
   1,499.56/2,253.32 = 806.74/x
3. Step 3: Cross multiply
   1,499.56x = 2,253.32 × 806.74
4. Step 4: Simplify right side
   1,499.56x = 1,817,843.38
5. Step 5: Solve for x
   x = 1,817,843.38/1,499.56
6. Step 6: Final answer
   x = 1,212.25