Finding the Fourth Proportional to 1,805.32, 2,490.39 and 1,244.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805.32 : 2,490.39 = 1,244.83 : x
2. Step 2: Convert to fraction form
   1,805.32/2,490.39 = 1,244.83/x
3. Step 3: Cross multiply
   1,805.32x = 2,490.39 × 1,244.83
4. Step 4: Simplify right side
   1,805.32x = 3,100,099.73
5. Step 5: Solve for x
   x = 3,100,099.73/1,805.32
6. Step 6: Final answer
   x = 1,717.20