Finding the Fourth Proportional to 2,926.82, 4,390.77 and 980.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,926.82 : 4,390.77 = 980.42 : x
2. Step 2: Convert to fraction form
   2,926.82/4,390.77 = 980.42/x
3. Step 3: Cross multiply
   2,926.82x = 4,390.77 × 980.42
4. Step 4: Simplify right side
   2,926.82x = 4,304,798.72
5. Step 5: Solve for x
   x = 4,304,798.72/2,926.82
6. Step 6: Final answer
   x = 1,470.81