Finding the Fourth Proportional to 2,253.48, 3,380.28 and 1,083.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.48 : 3,380.28 = 1,083.30 : x
2. Step 2: Convert to fraction form
   2,253.48/3,380.28 = 1,083.30/x
3. Step 3: Cross multiply
   2,253.48x = 3,380.28 × 1,083.30
4. Step 4: Simplify right side
   2,253.48x = 3,661,857.32
5. Step 5: Solve for x
   x = 3,661,857.32/2,253.48
6. Step 6: Final answer
   x = 1,624.98