Finding the Fourth Proportional to 2,190.05, 3,022.35 and 1,305.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.05 : 3,022.35 = 1,305.94 : x
2. Step 2: Convert to fraction form
   2,190.05/3,022.35 = 1,305.94/x
3. Step 3: Cross multiply
   2,190.05x = 3,022.35 × 1,305.94
4. Step 4: Simplify right side
   2,190.05x = 3,946,992.65
5. Step 5: Solve for x
   x = 3,946,992.65/2,190.05
6. Step 6: Final answer
   x = 1,802.24