Finding the Fourth Proportional to 2,399.97, 3,312.01 and 1,455.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.97 : 3,312.01 = 1,455.53 : x
2. Step 2: Convert to fraction form
   2,399.97/3,312.01 = 1,455.53/x
3. Step 3: Cross multiply
   2,399.97x = 3,312.01 × 1,455.53
4. Step 4: Simplify right side
   2,399.97x = 4,820,729.92
5. Step 5: Solve for x
   x = 4,820,729.92/2,399.97
6. Step 6: Final answer
   x = 2,008.66