Finding the Fourth Proportional to 3,677.72, 5,074.84 and 2,106.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,677.72 : 5,074.84 = 2,106.12 : x
2. Step 2: Convert to fraction form
   3,677.72/5,074.84 = 2,106.12/x
3. Step 3: Cross multiply
   3,677.72x = 5,074.84 × 2,106.12
4. Step 4: Simplify right side
   3,677.72x = 10,688,222.02
5. Step 5: Solve for x
   x = 10,688,222.02/3,677.72
6. Step 6: Final answer
   x = 2,906.21