Finding the Fourth Proportional to 1,768.07, 2,439.90 and 982.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,768.07 : 2,439.90 = 982.10 : x
2. Step 2: Convert to fraction form
   1,768.07/2,439.90 = 982.10/x
3. Step 3: Cross multiply
   1,768.07x = 2,439.90 × 982.10
4. Step 4: Simplify right side
   1,768.07x = 2,396,213.59
5. Step 5: Solve for x
   x = 2,396,213.59/1,768.07
6. Step 6: Final answer
   x = 1,355.27