Finding the Fourth Proportional to 1,808.84, 2,709.87 and 1,443.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,808.84 : 2,709.87 = 1,443.20 : x
2. Step 2: Convert to fraction form
   1,808.84/2,709.87 = 1,443.20/x
3. Step 3: Cross multiply
   1,808.84x = 2,709.87 × 1,443.20
4. Step 4: Simplify right side
   1,808.84x = 3,910,870.83
5. Step 5: Solve for x
   x = 3,910,870.83/1,808.84
6. Step 6: Final answer
   x = 2,162.09