Finding the Fourth Proportional to 3,959.83, 5,940.15 and 1,186.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,959.83 : 5,940.15 = 1,186.19 : x
2. Step 2: Convert to fraction form
   3,959.83/5,940.15 = 1,186.19/x
3. Step 3: Cross multiply
   3,959.83x = 5,940.15 × 1,186.19
4. Step 4: Simplify right side
   3,959.83x = 7,046,116.83
5. Step 5: Solve for x
   x = 7,046,116.83/3,959.83
6. Step 6: Final answer
   x = 1,779.40