Finding the Fourth Proportional to 1,760.64, 2,429.48 and 974.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.64 : 2,429.48 = 974.55 : x
2. Step 2: Convert to fraction form
   1,760.64/2,429.48 = 974.55/x
3. Step 3: Cross multiply
   1,760.64x = 2,429.48 × 974.55
4. Step 4: Simplify right side
   1,760.64x = 2,367,644.86
5. Step 5: Solve for x
   x = 2,367,644.86/1,760.64
6. Step 6: Final answer
   x = 1,344.76