Finding the Fourth Proportional to 2,118.82, 3,177.96 and 885.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.82 : 3,177.96 = 885.82 : x
2. Step 2: Convert to fraction form
   2,118.82/3,177.96 = 885.82/x
3. Step 3: Cross multiply
   2,118.82x = 3,177.96 × 885.82
4. Step 4: Simplify right side
   2,118.82x = 2,815,100.53
5. Step 5: Solve for x
   x = 2,815,100.53/2,118.82
6. Step 6: Final answer
   x = 1,328.62