Finding the Fourth Proportional to 2,200.72, 3,036.89 and 1,205.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.72 : 3,036.89 = 1,205.79 : x
2. Step 2: Convert to fraction form
   2,200.72/3,036.89 = 1,205.79/x
3. Step 3: Cross multiply
   2,200.72x = 3,036.89 × 1,205.79
4. Step 4: Simplify right side
   2,200.72x = 3,661,851.59
5. Step 5: Solve for x
   x = 3,661,851.59/2,200.72
6. Step 6: Final answer
   x = 1,663.93