Finding the Fourth Proportional to 3,675.67, 5,510.34 and 1,209.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,675.67 : 5,510.34 = 1,209.82 : x
2. Step 2: Convert to fraction form
   3,675.67/5,510.34 = 1,209.82/x
3. Step 3: Cross multiply
   3,675.67x = 5,510.34 × 1,209.82
4. Step 4: Simplify right side
   3,675.67x = 6,666,519.54
5. Step 5: Solve for x
   x = 6,666,519.54/3,675.67
6. Step 6: Final answer
   x = 1,813.69