Finding the Fourth Proportional to 1,973.84, 2,958.78 and 674.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973.84 : 2,958.78 = 674.42 : x
2. Step 2: Convert to fraction form
   1,973.84/2,958.78 = 674.42/x
3. Step 3: Cross multiply
   1,973.84x = 2,958.78 × 674.42
4. Step 4: Simplify right side
   1,973.84x = 1,995,460.41
5. Step 5: Solve for x
   x = 1,995,460.41/1,973.84
6. Step 6: Final answer
   x = 1,010.95