Finding the Fourth Proportional to 1,975.21, 2,726.88 and 1,443.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,975.21 : 2,726.88 = 1,443.56 : x
2. Step 2: Convert to fraction form
   1,975.21/2,726.88 = 1,443.56/x
3. Step 3: Cross multiply
   1,975.21x = 2,726.88 × 1,443.56
4. Step 4: Simplify right side
   1,975.21x = 3,936,414.89
5. Step 5: Solve for x
   x = 3,936,414.89/1,975.21
6. Step 6: Final answer
   x = 1,992.91