Finding the Fourth Proportional to 3,780.32, 5,216.85 and 2,101.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780.32 : 5,216.85 = 2,101.83 : x
2. Step 2: Convert to fraction form
   3,780.32/5,216.85 = 2,101.83/x
3. Step 3: Cross multiply
   3,780.32x = 5,216.85 × 2,101.83
4. Step 4: Simplify right side
   3,780.32x = 10,964,931.84
5. Step 5: Solve for x
   x = 10,964,931.84/3,780.32
6. Step 6: Final answer
   x = 2,900.53