Finding the Fourth Proportional to 2,404.89, 3,597.78 and 1,821.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.89 : 3,597.78 = 1,821.57 : x
2. Step 2: Convert to fraction form
   2,404.89/3,597.78 = 1,821.57/x
3. Step 3: Cross multiply
   2,404.89x = 3,597.78 × 1,821.57
4. Step 4: Simplify right side
   2,404.89x = 6,553,621.69
5. Step 5: Solve for x
   x = 6,553,621.69/2,404.89
6. Step 6: Final answer
   x = 2,725.12