Finding the Fourth Proportional to 1,581.82, 2,182.90 and 883.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581.82 : 2,182.90 = 883.18 : x
2. Step 2: Convert to fraction form
   1,581.82/2,182.90 = 883.18/x
3. Step 3: Cross multiply
   1,581.82x = 2,182.90 × 883.18
4. Step 4: Simplify right side
   1,581.82x = 1,927,893.62
5. Step 5: Solve for x
   x = 1,927,893.62/1,581.82
6. Step 6: Final answer
   x = 1,218.78