Finding the Fourth Proportional to 3,672.57, 5,507.69 and 1,206.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,672.57 : 5,507.69 = 1,206.82 : x
2. Step 2: Convert to fraction form
   3,672.57/5,507.69 = 1,206.82/x
3. Step 3: Cross multiply
   3,672.57x = 5,507.69 × 1,206.82
4. Step 4: Simplify right side
   3,672.57x = 6,646,791.30
5. Step 5: Solve for x
   x = 6,646,791.30/3,672.57
6. Step 6: Final answer
   x = 1,809.85