Finding the Fourth Proportional to 2,106.68, 2,906.18 and 1,361.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.68 : 2,906.18 = 1,361.27 : x
2. Step 2: Convert to fraction form
   2,106.68/2,906.18 = 1,361.27/x
3. Step 3: Cross multiply
   2,106.68x = 2,906.18 × 1,361.27
4. Step 4: Simplify right side
   2,106.68x = 3,956,101.21
5. Step 5: Solve for x
   x = 3,956,101.21/2,106.68
6. Step 6: Final answer
   x = 1,877.89