Finding the Fourth Proportional to 2,763.59, 3,813.76 and 1,521.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,763.59 : 3,813.76 = 1,521.59 : x
2. Step 2: Convert to fraction form
   2,763.59/3,813.76 = 1,521.59/x
3. Step 3: Cross multiply
   2,763.59x = 3,813.76 × 1,521.59
4. Step 4: Simplify right side
   2,763.59x = 5,802,979.08
5. Step 5: Solve for x
   x = 5,802,979.08/2,763.59
6. Step 6: Final answer
   x = 2,099.80