Finding the Fourth Proportional to 2,345.58, 3,517.34 and 1,249.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.58 : 3,517.34 = 1,249.71 : x
2. Step 2: Convert to fraction form
   2,345.58/3,517.34 = 1,249.71/x
3. Step 3: Cross multiply
   2,345.58x = 3,517.34 × 1,249.71
4. Step 4: Simplify right side
   2,345.58x = 4,395,648.72
5. Step 5: Solve for x
   x = 4,395,648.72/2,345.58
6. Step 6: Final answer
   x = 1,874.01