Finding the Fourth Proportional to 2,225.57, 3,336.12 and 763.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.57 : 3,336.12 = 763.73 : x
2. Step 2: Convert to fraction form
   2,225.57/3,336.12 = 763.73/x
3. Step 3: Cross multiply
   2,225.57x = 3,336.12 × 763.73
4. Step 4: Simplify right side
   2,225.57x = 2,547,894.93
5. Step 5: Solve for x
   x = 2,547,894.93/2,225.57
6. Step 6: Final answer
   x = 1,144.83