Finding the Fourth Proportional to 2,103.75, 3,156.20 and 1,874.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.75 : 3,156.20 = 1,874.22 : x
2. Step 2: Convert to fraction form
   2,103.75/3,156.20 = 1,874.22/x
3. Step 3: Cross multiply
   2,103.75x = 3,156.20 × 1,874.22
4. Step 4: Simplify right side
   2,103.75x = 5,915,403.79
5. Step 5: Solve for x
   x = 5,915,403.79/2,103.75
6. Step 6: Final answer
   x = 2,811.84