Finding the Fourth Proportional to 3,561.39, 5,334.12 and 2,058.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.39 : 5,334.12 = 2,058.57 : x
2. Step 2: Convert to fraction form
   3,561.39/5,334.12 = 2,058.57/x
3. Step 3: Cross multiply
   3,561.39x = 5,334.12 × 2,058.57
4. Step 4: Simplify right side
   3,561.39x = 10,980,659.41
5. Step 5: Solve for x
   x = 10,980,659.41/3,561.39
6. Step 6: Final answer
   x = 3,083.25