Finding the Fourth Proportional to 1,856.58, 2,783.22 and 1,443.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.58 : 2,783.22 = 1,443.48 : x
2. Step 2: Convert to fraction form
   1,856.58/2,783.22 = 1,443.48/x
3. Step 3: Cross multiply
   1,856.58x = 2,783.22 × 1,443.48
4. Step 4: Simplify right side
   1,856.58x = 4,017,522.41
5. Step 5: Solve for x
   x = 4,017,522.41/1,856.58
6. Step 6: Final answer
   x = 2,163.94