Finding the Fourth Proportional to 2,550.77, 3,520.50 and 1,503.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.77 : 3,520.50 = 1,503.05 : x
2. Step 2: Convert to fraction form
   2,550.77/3,520.50 = 1,503.05/x
3. Step 3: Cross multiply
   2,550.77x = 3,520.50 × 1,503.05
4. Step 4: Simplify right side
   2,550.77x = 5,291,487.53
5. Step 5: Solve for x
   x = 5,291,487.53/2,550.77
6. Step 6: Final answer
   x = 2,074.47