Finding the Fourth Proportional to 1,900.43, 2,849.18 and 1,205.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.43 : 2,849.18 = 1,205.65 : x
2. Step 2: Convert to fraction form
   1,900.43/2,849.18 = 1,205.65/x
3. Step 3: Cross multiply
   1,900.43x = 2,849.18 × 1,205.65
4. Step 4: Simplify right side
   1,900.43x = 3,435,111.40
5. Step 5: Solve for x
   x = 3,435,111.40/1,900.43
6. Step 6: Final answer
   x = 1,807.55