Finding the Fourth Proportional to 2,253.11, 3,108.83 and 1,308.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.11 : 3,108.83 = 1,308.89 : x
2. Step 2: Convert to fraction form
   2,253.11/3,108.83 = 1,308.89/x
3. Step 3: Cross multiply
   2,253.11x = 3,108.83 × 1,308.89
4. Step 4: Simplify right side
   2,253.11x = 4,069,094.41
5. Step 5: Solve for x
   x = 4,069,094.41/2,253.11
6. Step 6: Final answer
   x = 1,805.99