Finding the Fourth Proportional to 1,805.52, 2,491.56 and 1,019.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805.52 : 2,491.56 = 1,019.48 : x
2. Step 2: Convert to fraction form
   1,805.52/2,491.56 = 1,019.48/x
3. Step 3: Cross multiply
   1,805.52x = 2,491.56 × 1,019.48
4. Step 4: Simplify right side
   1,805.52x = 2,540,095.59
5. Step 5: Solve for x
   x = 2,540,095.59/1,805.52
6. Step 6: Final answer
   x = 1,406.85