Finding the Fourth Proportional to 2,725.77, 4,086.27 and 970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,725.77 : 4,086.27 = 970.50 : x
2. Step 2: Convert to fraction form
   2,725.77/4,086.27 = 970.50/x
3. Step 3: Cross multiply
   2,725.77x = 4,086.27 × 970.50
4. Step 4: Simplify right side
   2,725.77x = 3,965,725.04
5. Step 5: Solve for x
   x = 3,965,725.04/2,725.77
6. Step 6: Final answer
   x = 1,454.90