Finding the Fourth Proportional to 2,352.69, 3,511.86 and 2,181.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,352.69 : 3,511.86 = 2,181.38 : x
2. Step 2: Convert to fraction form
   2,352.69/3,511.86 = 2,181.38/x
3. Step 3: Cross multiply
   2,352.69x = 3,511.86 × 2,181.38
4. Step 4: Simplify right side
   2,352.69x = 7,660,683.61
5. Step 5: Solve for x
   x = 7,660,683.61/2,352.69
6. Step 6: Final answer
   x = 3,256.14