Finding the Fourth Proportional to 3,744.56, 5,617.82 and 1,279.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,744.56 : 5,617.82 = 1,279.37 : x
2. Step 2: Convert to fraction form
   3,744.56/5,617.82 = 1,279.37/x
3. Step 3: Cross multiply
   3,744.56x = 5,617.82 × 1,279.37
4. Step 4: Simplify right side
   3,744.56x = 7,187,235.89
5. Step 5: Solve for x
   x = 7,187,235.89/3,744.56
6. Step 6: Final answer
   x = 1,919.38