Finding the Fourth Proportional to 2,400.21, 3,600.83 and 756.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,400.21 : 3,600.83 = 756.89 : x
2. Step 2: Convert to fraction form
   2,400.21/3,600.83 = 756.89/x
3. Step 3: Cross multiply
   2,400.21x = 3,600.83 × 756.89
4. Step 4: Simplify right side
   2,400.21x = 2,725,410.43
5. Step 5: Solve for x
   x = 2,725,410.43/2,400.21
6. Step 6: Final answer
   x = 1,135.49