Finding the Fourth Proportional to 1,481.31, 2,043.56 and 851.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,481.31 : 2,043.56 = 851.69 : x
2. Step 2: Convert to fraction form
   1,481.31/2,043.56 = 851.69/x
3. Step 3: Cross multiply
   1,481.31x = 2,043.56 × 851.69
4. Step 4: Simplify right side
   1,481.31x = 1,740,479.62
5. Step 5: Solve for x
   x = 1,740,479.62/1,481.31
6. Step 6: Final answer
   x = 1,174.96