Finding the Fourth Proportional to 2,520.84, 3,479.45 and 1,636.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.84 : 3,479.45 = 1,636.59 : x
2. Step 2: Convert to fraction form
   2,520.84/3,479.45 = 1,636.59/x
3. Step 3: Cross multiply
   2,520.84x = 3,479.45 × 1,636.59
4. Step 4: Simplify right side
   2,520.84x = 5,694,424.89
5. Step 5: Solve for x
   x = 5,694,424.89/2,520.84
6. Step 6: Final answer
   x = 2,258.94