Finding the Fourth Proportional to 2,540.93, 3,811.86 and 897.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.93 : 3,811.86 = 897.03 : x
2. Step 2: Convert to fraction form
   2,540.93/3,811.86 = 897.03/x
3. Step 3: Cross multiply
   2,540.93x = 3,811.86 × 897.03
4. Step 4: Simplify right side
   2,540.93x = 3,419,352.78
5. Step 5: Solve for x
   x = 3,419,352.78/2,540.93
6. Step 6: Final answer
   x = 1,345.71