Finding the Fourth Proportional to 3,672.78, 5,068.38 and 2,100.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,672.78 : 5,068.38 = 2,100.84 : x
2. Step 2: Convert to fraction form
   3,672.78/5,068.38 = 2,100.84/x
3. Step 3: Cross multiply
   3,672.78x = 5,068.38 × 2,100.84
4. Step 4: Simplify right side
   3,672.78x = 10,647,855.44
5. Step 5: Solve for x
   x = 10,647,855.44/3,672.78
6. Step 6: Final answer
   x = 2,899.13