Finding the Fourth Proportional to 2,256.11, 3,383.30 and 1,085.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.11 : 3,383.30 = 1,085.37 : x
2. Step 2: Convert to fraction form
   2,256.11/3,383.30 = 1,085.37/x
3. Step 3: Cross multiply
   2,256.11x = 3,383.30 × 1,085.37
4. Step 4: Simplify right side
   2,256.11x = 3,672,126.89
5. Step 5: Solve for x
   x = 3,672,126.89/2,256.11
6. Step 6: Final answer
   x = 1,627.64