Finding the Fourth Proportional to 1,405.97, 1,940.89 and 1,047.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.97 : 1,940.89 = 1,047.95 : x
2. Step 2: Convert to fraction form
   1,405.97/1,940.89 = 1,047.95/x
3. Step 3: Cross multiply
   1,405.97x = 1,940.89 × 1,047.95
4. Step 4: Simplify right side
   1,405.97x = 2,033,955.68
5. Step 5: Solve for x
   x = 2,033,955.68/1,405.97
6. Step 6: Final answer
   x = 1,446.66