Finding the Fourth Proportional to 2,725.25, 4,087.56 and 970.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,725.25 : 4,087.56 = 970.18 : x
2. Step 2: Convert to fraction form
   2,725.25/4,087.56 = 970.18/x
3. Step 3: Cross multiply
   2,725.25x = 4,087.56 × 970.18
4. Step 4: Simplify right side
   2,725.25x = 3,965,662.38
5. Step 5: Solve for x
   x = 3,965,662.38/2,725.25
6. Step 6: Final answer
   x = 1,455.16