Finding the Fourth Proportional to 1,406.03, 1,940.38 and 816.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.03 : 1,940.38 = 816.42 : x
2. Step 2: Convert to fraction form
   1,406.03/1,940.38 = 816.42/x
3. Step 3: Cross multiply
   1,406.03x = 1,940.38 × 816.42
4. Step 4: Simplify right side
   1,406.03x = 1,584,163.00
5. Step 5: Solve for x
   x = 1,584,163.00/1,406.03
6. Step 6: Final answer
   x = 1,126.69