Finding the Fourth Proportional to 1,842.80, 2,543.98 and 1,443.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,842.80 : 2,543.98 = 1,443.76 : x
2. Step 2: Convert to fraction form
   1,842.80/2,543.98 = 1,443.76/x
3. Step 3: Cross multiply
   1,842.80x = 2,543.98 × 1,443.76
4. Step 4: Simplify right side
   1,842.80x = 3,672,896.56
5. Step 5: Solve for x
   x = 3,672,896.56/1,842.80
6. Step 6: Final answer
   x = 1,993.11