Finding the Fourth Proportional to 2,845.34, 4,267.98 and 765.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,845.34 : 4,267.98 = 765.53 : x
2. Step 2: Convert to fraction form
   2,845.34/4,267.98 = 765.53/x
3. Step 3: Cross multiply
   2,845.34x = 4,267.98 × 765.53
4. Step 4: Simplify right side
   2,845.34x = 3,267,266.73
5. Step 5: Solve for x
   x = 3,267,266.73/2,845.34
6. Step 6: Final answer
   x = 1,148.29