Finding the Fourth Proportional to 2,316.61, 3,196.61 and 1,321.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.61 : 3,196.61 = 1,321.82 : x
2. Step 2: Convert to fraction form
   2,316.61/3,196.61 = 1,321.82/x
3. Step 3: Cross multiply
   2,316.61x = 3,196.61 × 1,321.82
4. Step 4: Simplify right side
   2,316.61x = 4,225,355.36
5. Step 5: Solve for x
   x = 4,225,355.36/2,316.61
6. Step 6: Final answer
   x = 1,823.94