Finding the Fourth Proportional to 2,063.30, 3,087.55 and 1,786.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.30 : 3,087.55 = 1,786.61 : x
2. Step 2: Convert to fraction form
   2,063.30/3,087.55 = 1,786.61/x
3. Step 3: Cross multiply
   2,063.30x = 3,087.55 × 1,786.61
4. Step 4: Simplify right side
   2,063.30x = 5,516,245.31
5. Step 5: Solve for x
   x = 5,516,245.31/2,063.30
6. Step 6: Final answer
   x = 2,673.51