Finding the Fourth Proportional to 1,760.15, 2,428.89 and 974.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.15 : 2,428.89 = 974.18 : x
2. Step 2: Convert to fraction form
   1,760.15/2,428.89 = 974.18/x
3. Step 3: Cross multiply
   1,760.15x = 2,428.89 × 974.18
4. Step 4: Simplify right side
   1,760.15x = 2,366,176.06
5. Step 5: Solve for x
   x = 2,366,176.06/1,760.15
6. Step 6: Final answer
   x = 1,344.30