Finding the Fourth Proportional to 2,078.22, 2,866.56 and 1,635.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.22 : 2,866.56 = 1,635.96 : x
2. Step 2: Convert to fraction form
   2,078.22/2,866.56 = 1,635.96/x
3. Step 3: Cross multiply
   2,078.22x = 2,866.56 × 1,635.96
4. Step 4: Simplify right side
   2,078.22x = 4,689,577.50
5. Step 5: Solve for x
   x = 4,689,577.50/2,078.22
6. Step 6: Final answer
   x = 2,256.54