Finding the Fourth Proportional to 2,323.64, 3,485.89 and 763.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.64 : 3,485.89 = 763.73 : x
2. Step 2: Convert to fraction form
   2,323.64/3,485.89 = 763.73/x
3. Step 3: Cross multiply
   2,323.64x = 3,485.89 × 763.73
4. Step 4: Simplify right side
   2,323.64x = 2,662,288.44
5. Step 5: Solve for x
   x = 2,662,288.44/2,323.64
6. Step 6: Final answer
   x = 1,145.74