Finding the Fourth Proportional to 2,607.40, 3,596.47 and 1,611.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.40 : 3,596.47 = 1,611.42 : x
2. Step 2: Convert to fraction form
   2,607.40/3,596.47 = 1,611.42/x
3. Step 3: Cross multiply
   2,607.40x = 3,596.47 × 1,611.42
4. Step 4: Simplify right side
   2,607.40x = 5,795,423.69
5. Step 5: Solve for x
   x = 5,795,423.69/2,607.40
6. Step 6: Final answer
   x = 2,222.68