Finding the Fourth Proportional to 1,760.09, 2,428.89 and 974.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.09 : 2,428.89 = 974.15 : x
2. Step 2: Convert to fraction form
   1,760.09/2,428.89 = 974.15/x
3. Step 3: Cross multiply
   1,760.09x = 2,428.89 × 974.15
4. Step 4: Simplify right side
   1,760.09x = 2,366,091.05
5. Step 5: Solve for x
   x = 2,366,091.05/1,760.09
6. Step 6: Final answer
   x = 1,344.30