Finding the Fourth Proportional to 1,581.64, 2,182.56 and 873.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581.64 : 2,182.56 = 873.46 : x
2. Step 2: Convert to fraction form
   1,581.64/2,182.56 = 873.46/x
3. Step 3: Cross multiply
   1,581.64x = 2,182.56 × 873.46
4. Step 4: Simplify right side
   1,581.64x = 1,906,378.86
5. Step 5: Solve for x
   x = 1,906,378.86/1,581.64
6. Step 6: Final answer
   x = 1,205.32