Finding the Fourth Proportional to 2,150.39, 3,225.46 and 763.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.39 : 3,225.46 = 763.55 : x
2. Step 2: Convert to fraction form
   2,150.39/3,225.46 = 763.55/x
3. Step 3: Cross multiply
   2,150.39x = 3,225.46 × 763.55
4. Step 4: Simplify right side
   2,150.39x = 2,462,781.95
5. Step 5: Solve for x
   x = 2,462,781.95/2,150.39
6. Step 6: Final answer
   x = 1,145.27