Finding the Fourth Proportional to 1,641.33, 2,264.36 and 1,082.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.33 : 2,264.36 = 1,082.43 : x
2. Step 2: Convert to fraction form
   1,641.33/2,264.36 = 1,082.43/x
3. Step 3: Cross multiply
   1,641.33x = 2,264.36 × 1,082.43
4. Step 4: Simplify right side
   1,641.33x = 2,451,005.78
5. Step 5: Solve for x
   x = 2,451,005.78/1,641.33
6. Step 6: Final answer
   x = 1,493.30