Finding the Fourth Proportional to 2,577.25, 3,857.55 and 1,342.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.25 : 3,857.55 = 1,342.90 : x
2. Step 2: Convert to fraction form
   2,577.25/3,857.55 = 1,342.90/x
3. Step 3: Cross multiply
   2,577.25x = 3,857.55 × 1,342.90
4. Step 4: Simplify right side
   2,577.25x = 5,180,303.90
5. Step 5: Solve for x
   x = 5,180,303.90/2,577.25
6. Step 6: Final answer
   x = 2,010.01