Finding the Fourth Proportional to 2,316.56, 3,196.81 and 1,321.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.56 : 3,196.81 = 1,321.84 : x
2. Step 2: Convert to fraction form
   2,316.56/3,196.81 = 1,321.84/x
3. Step 3: Cross multiply
   2,316.56x = 3,196.81 × 1,321.84
4. Step 4: Simplify right side
   2,316.56x = 4,225,671.33
5. Step 5: Solve for x
   x = 4,225,671.33/2,316.56
6. Step 6: Final answer
   x = 1,824.11