Finding the Fourth Proportional to 1,982.16, 2,734.86 and 1,236.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.16 : 2,734.86 = 1,236.15 : x
2. Step 2: Convert to fraction form
   1,982.16/2,734.86 = 1,236.15/x
3. Step 3: Cross multiply
   1,982.16x = 2,734.86 × 1,236.15
4. Step 4: Simplify right side
   1,982.16x = 3,380,697.19
5. Step 5: Solve for x
   x = 3,380,697.19/1,982.16
6. Step 6: Final answer
   x = 1,705.56