Finding the Fourth Proportional to 2,601.77, 3,903.39 and 1,285.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.77 : 3,903.39 = 1,285.92 : x
2. Step 2: Convert to fraction form
   2,601.77/3,903.39 = 1,285.92/x
3. Step 3: Cross multiply
   2,601.77x = 3,903.39 × 1,285.92
4. Step 4: Simplify right side
   2,601.77x = 5,019,447.27
5. Step 5: Solve for x
   x = 5,019,447.27/2,601.77
6. Step 6: Final answer
   x = 1,929.25