Finding the Fourth Proportional to 2,290.56, 3,436.40 and 1,058.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.56 : 3,436.40 = 1,058.82 : x
2. Step 2: Convert to fraction form
   2,290.56/3,436.40 = 1,058.82/x
3. Step 3: Cross multiply
   2,290.56x = 3,436.40 × 1,058.82
4. Step 4: Simplify right side
   2,290.56x = 3,638,529.05
5. Step 5: Solve for x
   x = 3,638,529.05/2,290.56
6. Step 6: Final answer
   x = 1,588.49