Finding the Fourth Proportional to 2,103.29, 3,151.34 and 1,485.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.29 : 3,151.34 = 1,485.80 : x
2. Step 2: Convert to fraction form
   2,103.29/3,151.34 = 1,485.80/x
3. Step 3: Cross multiply
   2,103.29x = 3,151.34 × 1,485.80
4. Step 4: Simplify right side
   2,103.29x = 4,682,253.54
5. Step 5: Solve for x
   x = 4,682,253.54/2,103.29
6. Step 6: Final answer
   x = 2,226.16