Finding the Fourth Proportional to 1,411.23, 1,947.60 and 851.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.23 : 1,947.60 = 851.84 : x
2. Step 2: Convert to fraction form
   1,411.23/1,947.60 = 851.84/x
3. Step 3: Cross multiply
   1,411.23x = 1,947.60 × 851.84
4. Step 4: Simplify right side
   1,411.23x = 1,659,033.85
5. Step 5: Solve for x
   x = 1,659,033.85/1,411.23
6. Step 6: Final answer
   x = 1,175.59