Finding the Fourth Proportional to 2,940.73, 4,412.83 and 1,186.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,940.73 : 4,412.83 = 1,186.57 : x
2. Step 2: Convert to fraction form
   2,940.73/4,412.83 = 1,186.57/x
3. Step 3: Cross multiply
   2,940.73x = 4,412.83 × 1,186.57
4. Step 4: Simplify right side
   2,940.73x = 5,236,131.69
5. Step 5: Solve for x
   x = 5,236,131.69/2,940.73
6. Step 6: Final answer
   x = 1,780.56