Finding the Fourth Proportional to 1,760.64, 2,429.72 and 974.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.64 : 2,429.72 = 974.71 : x
2. Step 2: Convert to fraction form
   1,760.64/2,429.72 = 974.71/x
3. Step 3: Cross multiply
   1,760.64x = 2,429.72 × 974.71
4. Step 4: Simplify right side
   1,760.64x = 2,368,272.38
5. Step 5: Solve for x
   x = 2,368,272.38/1,760.64
6. Step 6: Final answer
   x = 1,345.12