Finding the Fourth Proportional to 3,870.63, 5,341.47 and 2,102.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.63 : 5,341.47 = 2,102.27 : x
2. Step 2: Convert to fraction form
   3,870.63/5,341.47 = 2,102.27/x
3. Step 3: Cross multiply
   3,870.63x = 5,341.47 × 2,102.27
4. Step 4: Simplify right side
   3,870.63x = 11,229,185.43
5. Step 5: Solve for x
   x = 11,229,185.43/3,870.63
6. Step 6: Final answer
   x = 2,901.13