Finding the Fourth Proportional to 1,297.82, 1,791.72 and 994.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,297.82 : 1,791.72 = 994.41 : x
2. Step 2: Convert to fraction form
   1,297.82/1,791.72 = 994.41/x
3. Step 3: Cross multiply
   1,297.82x = 1,791.72 × 994.41
4. Step 4: Simplify right side
   1,297.82x = 1,781,704.29
5. Step 5: Solve for x
   x = 1,781,704.29/1,297.82
6. Step 6: Final answer
   x = 1,372.84