Finding the Fourth Proportional to 2,103.10, 3,151.05 and 1,372.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.10 : 3,151.05 = 1,372.30 : x
2. Step 2: Convert to fraction form
   2,103.10/3,151.05 = 1,372.30/x
3. Step 3: Cross multiply
   2,103.10x = 3,151.05 × 1,372.30
4. Step 4: Simplify right side
   2,103.10x = 4,324,185.92
5. Step 5: Solve for x
   x = 4,324,185.92/2,103.10
6. Step 6: Final answer
   x = 2,056.10