Finding the Fourth Proportional to 3,761, 5,190.42 and 2,105

Step by Step Solution

1. Step 1: Write the proportion equation
   3,761 : 5,190.42 = 2,105 : x
2. Step 2: Convert to fraction form
   3,761/5,190.42 = 2,105/x
3. Step 3: Cross multiply
   3,761x = 5,190.42 × 2,105
4. Step 4: Simplify right side
   3,761x = 10,925,834.10
5. Step 5: Solve for x
   x = 10,925,834.10/3,761
6. Step 6: Final answer
   x = 2,905.03