Finding the Fourth Proportional to 2,187.76, 3,020.34 and 1,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.76 : 3,020.34 = 1,443.50 : x
2. Step 2: Convert to fraction form
   2,187.76/3,020.34 = 1,443.50/x
3. Step 3: Cross multiply
   2,187.76x = 3,020.34 × 1,443.50
4. Step 4: Simplify right side
   2,187.76x = 4,359,845.81
5. Step 5: Solve for x
   x = 4,359,845.81/2,187.76
6. Step 6: Final answer
   x = 1,992.84