Finding the Fourth Proportional to 2,604.60, 3,907.72 and 1,144.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604.60 : 3,907.72 = 1,144.98 : x
2. Step 2: Convert to fraction form
   2,604.60/3,907.72 = 1,144.98/x
3. Step 3: Cross multiply
   2,604.60x = 3,907.72 × 1,144.98
4. Step 4: Simplify right side
   2,604.60x = 4,474,261.25
5. Step 5: Solve for x
   x = 4,474,261.25/2,604.60
6. Step 6: Final answer
   x = 1,717.83