Finding the Fourth Proportional to 1,786.25, 2,680.46 and 760.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.25 : 2,680.46 = 760.25 : x
2. Step 2: Convert to fraction form
   1,786.25/2,680.46 = 760.25/x
3. Step 3: Cross multiply
   1,786.25x = 2,680.46 × 760.25
4. Step 4: Simplify right side
   1,786.25x = 2,037,819.72
5. Step 5: Solve for x
   x = 2,037,819.72/1,786.25
6. Step 6: Final answer
   x = 1,140.84