Finding the Fourth Proportional to 2,316.32, 3,196.02 and 1,321.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.32 : 3,196.02 = 1,321.22 : x
2. Step 2: Convert to fraction form
   2,316.32/3,196.02 = 1,321.22/x
3. Step 3: Cross multiply
   2,316.32x = 3,196.02 × 1,321.22
4. Step 4: Simplify right side
   2,316.32x = 4,222,645.54
5. Step 5: Solve for x
   x = 4,222,645.54/2,316.32
6. Step 6: Final answer
   x = 1,823.00