Finding the Fourth Proportional to 2,200.45, 3,036.63 and 1,205.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.45 : 3,036.63 = 1,205.75 : x
2. Step 2: Convert to fraction form
   2,200.45/3,036.63 = 1,205.75/x
3. Step 3: Cross multiply
   2,200.45x = 3,036.63 × 1,205.75
4. Step 4: Simplify right side
   2,200.45x = 3,661,407.45
5. Step 5: Solve for x
   x = 3,661,407.45/2,200.45
6. Step 6: Final answer
   x = 1,663.93