Finding the Fourth Proportional to 3,780.83, 5,217.56 and 2,102.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780.83 : 5,217.56 = 2,102.22 : x
2. Step 2: Convert to fraction form
   3,780.83/5,217.56 = 2,102.22/x
3. Step 3: Cross multiply
   3,780.83x = 5,217.56 × 2,102.22
4. Step 4: Simplify right side
   3,780.83x = 10,968,461.52
5. Step 5: Solve for x
   x = 10,968,461.52/3,780.83
6. Step 6: Final answer
   x = 2,901.07