Finding the Fourth Proportional to 1,541.98, 2,123.60 and 1,443.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,541.98 : 2,123.60 = 1,443.16 : x
2. Step 2: Convert to fraction form
   1,541.98/2,123.60 = 1,443.16/x
3. Step 3: Cross multiply
   1,541.98x = 2,123.60 × 1,443.16
4. Step 4: Simplify right side
   1,541.98x = 3,064,694.58
5. Step 5: Solve for x
   x = 3,064,694.58/1,541.98
6. Step 6: Final answer
   x = 1,987.51