Finding the Fourth Proportional to 2,449.89, 3,381.17 and 1,611.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.89 : 3,381.17 = 1,611.32 : x
2. Step 2: Convert to fraction form
   2,449.89/3,381.17 = 1,611.32/x
3. Step 3: Cross multiply
   2,449.89x = 3,381.17 × 1,611.32
4. Step 4: Simplify right side
   2,449.89x = 5,448,121.88
5. Step 5: Solve for x
   x = 5,448,121.88/2,449.89
6. Step 6: Final answer
   x = 2,223.82