Finding the Fourth Proportional to 2,255.05, 3,111.04 and 1,415.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.05 : 3,111.04 = 1,415.49 : x
2. Step 2: Convert to fraction form
   2,255.05/3,111.04 = 1,415.49/x
3. Step 3: Cross multiply
   2,255.05x = 3,111.04 × 1,415.49
4. Step 4: Simplify right side
   2,255.05x = 4,403,646.01
5. Step 5: Solve for x
   x = 4,403,646.01/2,255.05
6. Step 6: Final answer
   x = 1,952.79