Finding the Fourth Proportional to 3,672.75, 5,068.41 and 2,100.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,672.75 : 5,068.41 = 2,100.90 : x
2. Step 2: Convert to fraction form
   3,672.75/5,068.41 = 2,100.90/x
3. Step 3: Cross multiply
   3,672.75x = 5,068.41 × 2,100.90
4. Step 4: Simplify right side
   3,672.75x = 10,648,222.57
5. Step 5: Solve for x
   x = 10,648,222.57/3,672.75
6. Step 6: Final answer
   x = 2,899.25