Finding the Fourth Proportional to 2,557.37, 3,836.61 and 1,518.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.37 : 3,836.61 = 1,518.32 : x
2. Step 2: Convert to fraction form
   2,557.37/3,836.61 = 1,518.32/x
3. Step 3: Cross multiply
   2,557.37x = 3,836.61 × 1,518.32
4. Step 4: Simplify right side
   2,557.37x = 5,825,182.51
5. Step 5: Solve for x
   x = 5,825,182.51/2,557.37
6. Step 6: Final answer
   x = 2,277.81