Finding the Fourth Proportional to 2,500.77, 3,449.15 and 1,505.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.77 : 3,449.15 = 1,505.01 : x
2. Step 2: Convert to fraction form
   2,500.77/3,449.15 = 1,505.01/x
3. Step 3: Cross multiply
   2,500.77x = 3,449.15 × 1,505.01
4. Step 4: Simplify right side
   2,500.77x = 5,190,997.72
5. Step 5: Solve for x
   x = 5,190,997.72/2,500.77
6. Step 6: Final answer
   x = 2,075.76