Finding the Fourth Proportional to 3,618.42, 4,992.82 and 2,106.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618.42 : 4,992.82 = 2,106.32 : x
2. Step 2: Convert to fraction form
   3,618.42/4,992.82 = 2,106.32/x
3. Step 3: Cross multiply
   3,618.42x = 4,992.82 × 2,106.32
4. Step 4: Simplify right side
   3,618.42x = 10,516,476.62
5. Step 5: Solve for x
   x = 10,516,476.62/3,618.42
6. Step 6: Final answer
   x = 2,906.37