Finding the Fourth Proportional to 2,608.84, 3,599.85 and 1,489.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.84 : 3,599.85 = 1,489.87 : x
2. Step 2: Convert to fraction form
   2,608.84/3,599.85 = 1,489.87/x
3. Step 3: Cross multiply
   2,608.84x = 3,599.85 × 1,489.87
4. Step 4: Simplify right side
   2,608.84x = 5,363,308.52
5. Step 5: Solve for x
   x = 5,363,308.52/2,608.84
6. Step 6: Final answer
   x = 2,055.82