Finding the Fourth Proportional to 2,452.15, 3,677.77 and 1,280.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.15 : 3,677.77 = 1,280.89 : x
2. Step 2: Convert to fraction form
   2,452.15/3,677.77 = 1,280.89/x
3. Step 3: Cross multiply
   2,452.15x = 3,677.77 × 1,280.89
4. Step 4: Simplify right side
   2,452.15x = 4,710,818.82
5. Step 5: Solve for x
   x = 4,710,818.82/2,452.15
6. Step 6: Final answer
   x = 1,921.10