Finding the Fourth Proportional to 1,596.21, 2,202.98 and 897.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,596.21 : 2,202.98 = 897.72 : x
2. Step 2: Convert to fraction form
   1,596.21/2,202.98 = 897.72/x
3. Step 3: Cross multiply
   1,596.21x = 2,202.98 × 897.72
4. Step 4: Simplify right side
   1,596.21x = 1,977,654.72
5. Step 5: Solve for x
   x = 1,977,654.72/1,596.21
6. Step 6: Final answer
   x = 1,238.97