Finding the Fourth Proportional to 1,896.48, 2,844.72 and 726

Step by Step Solution

1. Step 1: Write the proportion equation
   1,896.48 : 2,844.72 = 726 : x
2. Step 2: Convert to fraction form
   1,896.48/2,844.72 = 726/x
3. Step 3: Cross multiply
   1,896.48x = 2,844.72 × 726
4. Step 4: Simplify right side
   1,896.48x = 2,065,266.72
5. Step 5: Solve for x
   x = 2,065,266.72/1,896.48
6. Step 6: Final answer
   x = 1,089.00