Finding the Fourth Proportional to 2,659.42, 3,669.32 and 1,611.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.42 : 3,669.32 = 1,611.28 : x
2. Step 2: Convert to fraction form
   2,659.42/3,669.32 = 1,611.28/x
3. Step 3: Cross multiply
   2,659.42x = 3,669.32 × 1,611.28
4. Step 4: Simplify right side
   2,659.42x = 5,912,301.93
5. Step 5: Solve for x
   x = 5,912,301.93/2,659.42
6. Step 6: Final answer
   x = 2,223.15