Finding the Fourth Proportional to 2,940.04, 4,409.82 and 860.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,940.04 : 4,409.82 = 860.06 : x
2. Step 2: Convert to fraction form
   2,940.04/4,409.82 = 860.06/x
3. Step 3: Cross multiply
   2,940.04x = 4,409.82 × 860.06
4. Step 4: Simplify right side
   2,940.04x = 3,792,709.79
5. Step 5: Solve for x
   x = 3,792,709.79/2,940.04
6. Step 6: Final answer
   x = 1,290.02