Finding the Fourth Proportional to 3,870.46, 5,341.25 and 2,102.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.46 : 5,341.25 = 2,102.05 : x
2. Step 2: Convert to fraction form
   3,870.46/5,341.25 = 2,102.05/x
3. Step 3: Cross multiply
   3,870.46x = 5,341.25 × 2,102.05
4. Step 4: Simplify right side
   3,870.46x = 11,227,574.56
5. Step 5: Solve for x
   x = 11,227,574.56/3,870.46
6. Step 6: Final answer
   x = 2,900.84