Finding the Fourth Proportional to 2,653.53, 3,977.52 and 897.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,653.53 : 3,977.52 = 897.21 : x
2. Step 2: Convert to fraction form
   2,653.53/3,977.52 = 897.21/x
3. Step 3: Cross multiply
   2,653.53x = 3,977.52 × 897.21
4. Step 4: Simplify right side
   2,653.53x = 3,568,670.72
5. Step 5: Solve for x
   x = 3,568,670.72/2,653.53
6. Step 6: Final answer
   x = 1,344.88