Finding the Fourth Proportional to 3,780.06, 5,216.38 and 2,101.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780.06 : 5,216.38 = 2,101.42 : x
2. Step 2: Convert to fraction form
   3,780.06/5,216.38 = 2,101.42/x
3. Step 3: Cross multiply
   3,780.06x = 5,216.38 × 2,101.42
4. Step 4: Simplify right side
   3,780.06x = 10,961,805.26
5. Step 5: Solve for x
   x = 10,961,805.26/3,780.06
6. Step 6: Final answer
   x = 2,899.90