Finding the Fourth Proportional to 2,316.27, 3,196.49 and 1,321.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.27 : 3,196.49 = 1,321.62 : x
2. Step 2: Convert to fraction form
   2,316.27/3,196.49 = 1,321.62/x
3. Step 3: Cross multiply
   2,316.27x = 3,196.49 × 1,321.62
4. Step 4: Simplify right side
   2,316.27x = 4,224,530.24
5. Step 5: Solve for x
   x = 4,224,530.24/2,316.27
6. Step 6: Final answer
   x = 1,823.85