Finding the Fourth Proportional to 2,253.02, 3,109.19 and 1,308.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.02 : 3,109.19 = 1,308.89 : x
2. Step 2: Convert to fraction form
   2,253.02/3,109.19 = 1,308.89/x
3. Step 3: Cross multiply
   2,253.02x = 3,109.19 × 1,308.89
4. Step 4: Simplify right side
   2,253.02x = 4,069,565.61
5. Step 5: Solve for x
   x = 4,069,565.61/2,253.02
6. Step 6: Final answer
   x = 1,806.28