Finding the Fourth Proportional to 1,805.06, 2,490.72 and 1,019

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805.06 : 2,490.72 = 1,019 : x
2. Step 2: Convert to fraction form
   1,805.06/2,490.72 = 1,019/x
3. Step 3: Cross multiply
   1,805.06x = 2,490.72 × 1,019
4. Step 4: Simplify right side
   1,805.06x = 2,538,043.68
5. Step 5: Solve for x
   x = 2,538,043.68/1,805.06
6. Step 6: Final answer
   x = 1,406.07