Finding the Fourth Proportional to 3,796.56, 5,239.32 and 2,118

Step by Step Solution

1. Step 1: Write the proportion equation
   3,796.56 : 5,239.32 = 2,118 : x
2. Step 2: Convert to fraction form
   3,796.56/5,239.32 = 2,118/x
3. Step 3: Cross multiply
   3,796.56x = 5,239.32 × 2,118
4. Step 4: Simplify right side
   3,796.56x = 11,096,879.76
5. Step 5: Solve for x
   x = 11,096,879.76/3,796.56
6. Step 6: Final answer
   x = 2,922.88