Finding the Fourth Proportional to 3,058.88, 4,585.72 and 1,211.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,058.88 : 4,585.72 = 1,211.30 : x
2. Step 2: Convert to fraction form
   3,058.88/4,585.72 = 1,211.30/x
3. Step 3: Cross multiply
   3,058.88x = 4,585.72 × 1,211.30
4. Step 4: Simplify right side
   3,058.88x = 5,554,659.71
5. Step 5: Solve for x
   x = 5,554,659.71/3,058.88
6. Step 6: Final answer
   x = 1,815.91