Finding the Fourth Proportional to 1,411.47, 1,947.90 and 851.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.47 : 1,947.90 = 851.93 : x
2. Step 2: Convert to fraction form
   1,411.47/1,947.90 = 851.93/x
3. Step 3: Cross multiply
   1,411.47x = 1,947.90 × 851.93
4. Step 4: Simplify right side
   1,411.47x = 1,659,465.32
5. Step 5: Solve for x
   x = 1,659,465.32/1,411.47
6. Step 6: Final answer
   x = 1,175.70