Finding the Fourth Proportional to 1,397.27, 1,941.61 and 1,382.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.27 : 1,941.61 = 1,382.09 : x
2. Step 2: Convert to fraction form
   1,397.27/1,941.61 = 1,382.09/x
3. Step 3: Cross multiply
   1,397.27x = 1,941.61 × 1,382.09
4. Step 4: Simplify right side
   1,397.27x = 2,683,466.60
5. Step 5: Solve for x
   x = 2,683,466.60/1,397.27
6. Step 6: Final answer
   x = 1,920.50