Finding the Fourth Proportional to 2,245.86, 3,369.72 and 1,205.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,245.86 : 3,369.72 = 1,205.22 : x
2. Step 2: Convert to fraction form
   2,245.86/3,369.72 = 1,205.22/x
3. Step 3: Cross multiply
   2,245.86x = 3,369.72 × 1,205.22
4. Step 4: Simplify right side
   2,245.86x = 4,061,253.94
5. Step 5: Solve for x
   x = 4,061,253.94/2,245.86
6. Step 6: Final answer
   x = 1,808.33