Finding the Fourth Proportional to 3,651.87, 5,475.24 and 1,279.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651.87 : 5,475.24 = 1,279.37 : x
2. Step 2: Convert to fraction form
   3,651.87/5,475.24 = 1,279.37/x
3. Step 3: Cross multiply
   3,651.87x = 5,475.24 × 1,279.37
4. Step 4: Simplify right side
   3,651.87x = 7,004,824.03
5. Step 5: Solve for x
   x = 7,004,824.03/3,651.87
6. Step 6: Final answer
   x = 1,918.15