Finding the Fourth Proportional to 2,673.06, 3,688.30 and 1,611.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.06 : 3,688.30 = 1,611.42 : x
2. Step 2: Convert to fraction form
   2,673.06/3,688.30 = 1,611.42/x
3. Step 3: Cross multiply
   2,673.06x = 3,688.30 × 1,611.42
4. Step 4: Simplify right side
   2,673.06x = 5,943,400.39
5. Step 5: Solve for x
   x = 5,943,400.39/2,673.06
6. Step 6: Final answer
   x = 2,223.44