Finding the Fourth Proportional to 2,253.49, 3,377.96 and 1,081.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.49 : 3,377.96 = 1,081.78 : x
2. Step 2: Convert to fraction form
   2,253.49/3,377.96 = 1,081.78/x
3. Step 3: Cross multiply
   2,253.49x = 3,377.96 × 1,081.78
4. Step 4: Simplify right side
   2,253.49x = 3,654,204.16
5. Step 5: Solve for x
   x = 3,654,204.16/2,253.49
6. Step 6: Final answer
   x = 1,621.58