Finding the Fourth Proportional to 1,760.40, 2,429.31 and 974.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.40 : 2,429.31 = 974.49 : x
2. Step 2: Convert to fraction form
   1,760.40/2,429.31 = 974.49/x
3. Step 3: Cross multiply
   1,760.40x = 2,429.31 × 974.49
4. Step 4: Simplify right side
   1,760.40x = 2,367,338.30
5. Step 5: Solve for x
   x = 2,367,338.30/1,760.40
6. Step 6: Final answer
   x = 1,344.77