Finding the Fourth Proportional to 1,889.82, 2,607.96 and 1,143.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.82 : 2,607.96 = 1,143.48 : x
2. Step 2: Convert to fraction form
   1,889.82/2,607.96 = 1,143.48/x
3. Step 3: Cross multiply
   1,889.82x = 2,607.96 × 1,143.48
4. Step 4: Simplify right side
   1,889.82x = 2,982,150.10
5. Step 5: Solve for x
   x = 2,982,150.10/1,889.82
6. Step 6: Final answer
   x = 1,578.01