Finding the Fourth Proportional to 2,106.15, 3,154.37 and 1,373.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.15 : 3,154.37 = 1,373.91 : x
2. Step 2: Convert to fraction form
   2,106.15/3,154.37 = 1,373.91/x
3. Step 3: Cross multiply
   2,106.15x = 3,154.37 × 1,373.91
4. Step 4: Simplify right side
   2,106.15x = 4,333,813.62
5. Step 5: Solve for x
   x = 4,333,813.62/2,106.15
6. Step 6: Final answer
   x = 2,057.69