Finding the Fourth Proportional to 2,580.50, 3,870.77 and 937.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.50 : 3,870.77 = 937.55 : x
2. Step 2: Convert to fraction form
   2,580.50/3,870.77 = 937.55/x
3. Step 3: Cross multiply
   2,580.50x = 3,870.77 × 937.55
4. Step 4: Simplify right side
   2,580.50x = 3,629,016.37
5. Step 5: Solve for x
   x = 3,629,016.37/2,580.50
6. Step 6: Final answer
   x = 1,406.33