Finding the Fourth Proportional to 3,690.48, 5,093.04 and 2,118.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,690.48 : 5,093.04 = 2,118.54 : x
2. Step 2: Convert to fraction form
   3,690.48/5,093.04 = 2,118.54/x
3. Step 3: Cross multiply
   3,690.48x = 5,093.04 × 2,118.54
4. Step 4: Simplify right side
   3,690.48x = 10,789,808.96
5. Step 5: Solve for x
   x = 10,789,808.96/3,690.48
6. Step 6: Final answer
   x = 2,923.69