Finding the Fourth Proportional to 2,130.48, 3,196.32 and 897.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130.48 : 3,196.32 = 897.28 : x
2. Step 2: Convert to fraction form
   2,130.48/3,196.32 = 897.28/x
3. Step 3: Cross multiply
   2,130.48x = 3,196.32 × 897.28
4. Step 4: Simplify right side
   2,130.48x = 2,867,994.01
5. Step 5: Solve for x
   x = 2,867,994.01/2,130.48
6. Step 6: Final answer
   x = 1,346.17