Finding the Fourth Proportional to 2,608.72, 3,599.88 and 1,489.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.72 : 3,599.88 = 1,489.84 : x
2. Step 2: Convert to fraction form
   2,608.72/3,599.88 = 1,489.84/x
3. Step 3: Cross multiply
   2,608.72x = 3,599.88 × 1,489.84
4. Step 4: Simplify right side
   2,608.72x = 5,363,245.22
5. Step 5: Solve for x
   x = 5,363,245.22/2,608.72
6. Step 6: Final answer
   x = 2,055.89