Finding the Fourth Proportional to 2,196.60, 3,293.30 and 897.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.60 : 3,293.30 = 897.40 : x
2. Step 2: Convert to fraction form
   2,196.60/3,293.30 = 897.40/x
3. Step 3: Cross multiply
   2,196.60x = 3,293.30 × 897.40
4. Step 4: Simplify right side
   2,196.60x = 2,955,407.42
5. Step 5: Solve for x
   x = 2,955,407.42/2,196.60
6. Step 6: Final answer
   x = 1,345.45