Finding the Fourth Proportional to 2,931.58, 4,396.56 and 982.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931.58 : 4,396.56 = 982.72 : x
2. Step 2: Convert to fraction form
   2,931.58/4,396.56 = 982.72/x
3. Step 3: Cross multiply
   2,931.58x = 4,396.56 × 982.72
4. Step 4: Simplify right side
   2,931.58x = 4,320,587.44
5. Step 5: Solve for x
   x = 4,320,587.44/2,931.58
6. Step 6: Final answer
   x = 1,473.81