Finding the Fourth Proportional to 2,225.34, 3,338.28 and 764.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.34 : 3,338.28 = 764.82 : x
2. Step 2: Convert to fraction form
   2,225.34/3,338.28 = 764.82/x
3. Step 3: Cross multiply
   2,225.34x = 3,338.28 × 764.82
4. Step 4: Simplify right side
   2,225.34x = 2,553,183.31
5. Step 5: Solve for x
   x = 2,553,183.31/2,225.34
6. Step 6: Final answer
   x = 1,147.32