Finding the Fourth Proportional to 1,911.24, 2,862.72 and 1,443.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,911.24 : 2,862.72 = 1,443.87 : x
2. Step 2: Convert to fraction form
   1,911.24/2,862.72 = 1,443.87/x
3. Step 3: Cross multiply
   1,911.24x = 2,862.72 × 1,443.87
4. Step 4: Simplify right side
   1,911.24x = 4,133,395.53
5. Step 5: Solve for x
   x = 4,133,395.53/1,911.24
6. Step 6: Final answer
   x = 2,162.68