Finding the Fourth Proportional to 2,188.56, 3,019.76 and 1,443.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.56 : 3,019.76 = 1,443.76 : x
2. Step 2: Convert to fraction form
   2,188.56/3,019.76 = 1,443.76/x
3. Step 3: Cross multiply
   2,188.56x = 3,019.76 × 1,443.76
4. Step 4: Simplify right side
   2,188.56x = 4,359,808.70
5. Step 5: Solve for x
   x = 4,359,808.70/2,188.56
6. Step 6: Final answer
   x = 1,992.09