Finding the Fourth Proportional to 3,690.56, 5,093.08 and 2,118.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,690.56 : 5,093.08 = 2,118.76 : x
2. Step 2: Convert to fraction form
   3,690.56/5,093.08 = 2,118.76/x
3. Step 3: Cross multiply
   3,690.56x = 5,093.08 × 2,118.76
4. Step 4: Simplify right side
   3,690.56x = 10,790,996.15
5. Step 5: Solve for x
   x = 10,790,996.15/3,690.56
6. Step 6: Final answer
   x = 2,923.94