Finding the Fourth Proportional to 2,200.49, 3,036.60 and 1,205.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.49 : 3,036.60 = 1,205.76 : x
2. Step 2: Convert to fraction form
   2,200.49/3,036.60 = 1,205.76/x
3. Step 3: Cross multiply
   2,200.49x = 3,036.60 × 1,205.76
4. Step 4: Simplify right side
   2,200.49x = 3,661,410.82
5. Step 5: Solve for x
   x = 3,661,410.82/2,200.49
6. Step 6: Final answer
   x = 1,663.91