Finding the Fourth Proportional to 1,643.56, 2,268.01 and 897.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643.56 : 2,268.01 = 897.37 : x
2. Step 2: Convert to fraction form
   1,643.56/2,268.01 = 897.37/x
3. Step 3: Cross multiply
   1,643.56x = 2,268.01 × 897.37
4. Step 4: Simplify right side
   1,643.56x = 2,035,236.22
5. Step 5: Solve for x
   x = 2,035,236.22/1,643.56
6. Step 6: Final answer
   x = 1,238.31