Finding the Fourth Proportional to 2,379.78, 3,573.63 and 1,604.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.78 : 3,573.63 = 1,604.77 : x
2. Step 2: Convert to fraction form
   2,379.78/3,573.63 = 1,604.77/x
3. Step 3: Cross multiply
   2,379.78x = 3,573.63 × 1,604.77
4. Step 4: Simplify right side
   2,379.78x = 5,734,854.22
5. Step 5: Solve for x
   x = 5,734,854.22/2,379.78
6. Step 6: Final answer
   x = 2,409.83