Finding the Fourth Proportional to 1,973.71, 2,959.89 and 674.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973.71 : 2,959.89 = 674.88 : x
2. Step 2: Convert to fraction form
   1,973.71/2,959.89 = 674.88/x
3. Step 3: Cross multiply
   1,973.71x = 2,959.89 × 674.88
4. Step 4: Simplify right side
   1,973.71x = 1,997,570.56
5. Step 5: Solve for x
   x = 1,997,570.56/1,973.71
6. Step 6: Final answer
   x = 1,012.09