Finding the Fourth Proportional to 1,791.31, 2,685.43 and 696.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,791.31 : 2,685.43 = 696.46 : x
2. Step 2: Convert to fraction form
   1,791.31/2,685.43 = 696.46/x
3. Step 3: Cross multiply
   1,791.31x = 2,685.43 × 696.46
4. Step 4: Simplify right side
   1,791.31x = 1,870,294.58
5. Step 5: Solve for x
   x = 1,870,294.58/1,791.31
6. Step 6: Final answer
   x = 1,044.09