Finding the Fourth Proportional to 3,780.01, 5,216.44 and 2,101.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780.01 : 5,216.44 = 2,101.57 : x
2. Step 2: Convert to fraction form
   3,780.01/5,216.44 = 2,101.57/x
3. Step 3: Cross multiply
   3,780.01x = 5,216.44 × 2,101.57
4. Step 4: Simplify right side
   3,780.01x = 10,962,713.81
5. Step 5: Solve for x
   x = 10,962,713.81/3,780.01
6. Step 6: Final answer
   x = 2,900.18