Finding the Fourth Proportional to 2,458.47, 3,686.55 and 897.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458.47 : 3,686.55 = 897.36 : x
2. Step 2: Convert to fraction form
   2,458.47/3,686.55 = 897.36/x
3. Step 3: Cross multiply
   2,458.47x = 3,686.55 × 897.36
4. Step 4: Simplify right side
   2,458.47x = 3,308,162.51
5. Step 5: Solve for x
   x = 3,308,162.51/2,458.47
6. Step 6: Final answer
   x = 1,345.62