Finding the Fourth Proportional to 2,103.78, 3,151.10 and 1,525.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.78 : 3,151.10 = 1,525.38 : x
2. Step 2: Convert to fraction form
   2,103.78/3,151.10 = 1,525.38/x
3. Step 3: Cross multiply
   2,103.78x = 3,151.10 × 1,525.38
4. Step 4: Simplify right side
   2,103.78x = 4,806,624.92
5. Step 5: Solve for x
   x = 4,806,624.92/2,103.78
6. Step 6: Final answer
   x = 2,284.76