Finding the Fourth Proportional to 1,093.83, 1,638.34 and 682.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.83 : 1,638.34 = 682.09 : x
2. Step 2: Convert to fraction form
   1,093.83/1,638.34 = 682.09/x
3. Step 3: Cross multiply
   1,093.83x = 1,638.34 × 682.09
4. Step 4: Simplify right side
   1,093.83x = 1,117,495.33
5. Step 5: Solve for x
   x = 1,117,495.33/1,093.83
6. Step 6: Final answer
   x = 1,021.64