Finding the Fourth Proportional to 1,406.54, 1,940.43 and 940.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.54 : 1,940.43 = 940.94 : x
2. Step 2: Convert to fraction form
   1,406.54/1,940.43 = 940.94/x
3. Step 3: Cross multiply
   1,406.54x = 1,940.43 × 940.94
4. Step 4: Simplify right side
   1,406.54x = 1,825,828.20
5. Step 5: Solve for x
   x = 1,825,828.20/1,406.54
6. Step 6: Final answer
   x = 1,298.10