Finding the Fourth Proportional to 3,061.40, 4,589.06 and 1,211.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.40 : 4,589.06 = 1,211.36 : x
2. Step 2: Convert to fraction form
   3,061.40/4,589.06 = 1,211.36/x
3. Step 3: Cross multiply
   3,061.40x = 4,589.06 × 1,211.36
4. Step 4: Simplify right side
   3,061.40x = 5,558,974.72
5. Step 5: Solve for x
   x = 5,558,974.72/3,061.40
6. Step 6: Final answer
   x = 1,815.83