Finding the Fourth Proportional to 2,112.25, 2,915.04 and 1,180.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.25 : 2,915.04 = 1,180.75 : x
2. Step 2: Convert to fraction form
   2,112.25/2,915.04 = 1,180.75/x
3. Step 3: Cross multiply
   2,112.25x = 2,915.04 × 1,180.75
4. Step 4: Simplify right side
   2,112.25x = 3,441,933.48
5. Step 5: Solve for x
   x = 3,441,933.48/2,112.25
6. Step 6: Final answer
   x = 1,629.51