Finding the Fourth Proportional to 1,973.28, 2,959.56 and 674.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973.28 : 2,959.56 = 674.72 : x
2. Step 2: Convert to fraction form
   1,973.28/2,959.56 = 674.72/x
3. Step 3: Cross multiply
   1,973.28x = 2,959.56 × 674.72
4. Step 4: Simplify right side
   1,973.28x = 1,996,874.32
5. Step 5: Solve for x
   x = 1,996,874.32/1,973.28
6. Step 6: Final answer
   x = 1,011.96