Finding the Fourth Proportional to 2,245.98, 3,099.48 and 1,251.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,245.98 : 3,099.48 = 1,251.28 : x
2. Step 2: Convert to fraction form
   2,245.98/3,099.48 = 1,251.28/x
3. Step 3: Cross multiply
   2,245.98x = 3,099.48 × 1,251.28
4. Step 4: Simplify right side
   2,245.98x = 3,878,317.33
5. Step 5: Solve for x
   x = 3,878,317.33/2,245.98
6. Step 6: Final answer
   x = 1,726.78