Finding the Fourth Proportional to 1,412.07, 1,949.31 and 940.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.07 : 1,949.31 = 940.80 : x
2. Step 2: Convert to fraction form
   1,412.07/1,949.31 = 940.80/x
3. Step 3: Cross multiply
   1,412.07x = 1,949.31 × 940.80
4. Step 4: Simplify right side
   1,412.07x = 1,833,910.85
5. Step 5: Solve for x
   x = 1,833,910.85/1,412.07
6. Step 6: Final answer
   x = 1,298.74