Finding the Fourth Proportional to 2,577.56, 3,867.42 and 1,424.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.56 : 3,867.42 = 1,424.12 : x
2. Step 2: Convert to fraction form
   2,577.56/3,867.42 = 1,424.12/x
3. Step 3: Cross multiply
   2,577.56x = 3,867.42 × 1,424.12
4. Step 4: Simplify right side
   2,577.56x = 5,507,670.17
5. Step 5: Solve for x
   x = 5,507,670.17/2,577.56
6. Step 6: Final answer
   x = 2,136.78