Finding the Fourth Proportional to 1,805.52, 2,491.50 and 1,019.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805.52 : 2,491.50 = 1,019.46 : x
2. Step 2: Convert to fraction form
   1,805.52/2,491.50 = 1,019.46/x
3. Step 3: Cross multiply
   1,805.52x = 2,491.50 × 1,019.46
4. Step 4: Simplify right side
   1,805.52x = 2,539,984.59
5. Step 5: Solve for x
   x = 2,539,984.59/1,805.52
6. Step 6: Final answer
   x = 1,406.79