Finding the Fourth Proportional to 2,216.58, 3,058.34 and 1,377.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.58 : 3,058.34 = 1,377.29 : x
2. Step 2: Convert to fraction form
   2,216.58/3,058.34 = 1,377.29/x
3. Step 3: Cross multiply
   2,216.58x = 3,058.34 × 1,377.29
4. Step 4: Simplify right side
   2,216.58x = 4,212,198.92
5. Step 5: Solve for x
   x = 4,212,198.92/2,216.58
6. Step 6: Final answer
   x = 1,900.31