Finding the Fourth Proportional to 1,823.74, 2,735.72 and 1,238.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823.74 : 2,735.72 = 1,238.49 : x
2. Step 2: Convert to fraction form
   1,823.74/2,735.72 = 1,238.49/x
3. Step 3: Cross multiply
   1,823.74x = 2,735.72 × 1,238.49
4. Step 4: Simplify right side
   1,823.74x = 3,388,148.83
5. Step 5: Solve for x
   x = 3,388,148.83/1,823.74
6. Step 6: Final answer
   x = 1,857.81