Finding the Fourth Proportional to 2,815.82, 4,225.74 and 1,355.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,815.82 : 4,225.74 = 1,355.78 : x
2. Step 2: Convert to fraction form
   2,815.82/4,225.74 = 1,355.78/x
3. Step 3: Cross multiply
   2,815.82x = 4,225.74 × 1,355.78
4. Step 4: Simplify right side
   2,815.82x = 5,729,173.78
5. Step 5: Solve for x
   x = 5,729,173.78/2,815.82
6. Step 6: Final answer
   x = 2,034.64