Finding the Fourth Proportional to 1,796.31, 2,694.96 and 871.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,796.31 : 2,694.96 = 871.92 : x
2. Step 2: Convert to fraction form
   1,796.31/2,694.96 = 871.92/x
3. Step 3: Cross multiply
   1,796.31x = 2,694.96 × 871.92
4. Step 4: Simplify right side
   1,796.31x = 2,349,789.52
5. Step 5: Solve for x
   x = 2,349,789.52/1,796.31
6. Step 6: Final answer
   x = 1,308.12