Finding the Fourth Proportional to 2,112.50, 2,915.25 and 1,181

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.50 : 2,915.25 = 1,181 : x
2. Step 2: Convert to fraction form
   2,112.50/2,915.25 = 1,181/x
3. Step 3: Cross multiply
   2,112.50x = 2,915.25 × 1,181
4. Step 4: Simplify right side
   2,112.50x = 3,442,910.25
5. Step 5: Solve for x
   x = 3,442,910.25/2,112.50
6. Step 6: Final answer
   x = 1,629.78