Finding the Fourth Proportional to 2,404.15, 3,605.68 and 759.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.15 : 3,605.68 = 759.78 : x
2. Step 2: Convert to fraction form
   2,404.15/3,605.68 = 759.78/x
3. Step 3: Cross multiply
   2,404.15x = 3,605.68 × 759.78
4. Step 4: Simplify right side
   2,404.15x = 2,739,524.50
5. Step 5: Solve for x
   x = 2,739,524.50/2,404.15
6. Step 6: Final answer
   x = 1,139.50