Finding the Fourth Proportional to 3,870.74, 5,341.57 and 2,192.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.74 : 5,341.57 = 2,192.12 : x
2. Step 2: Convert to fraction form
   3,870.74/5,341.57 = 2,192.12/x
3. Step 3: Cross multiply
   3,870.74x = 5,341.57 × 2,192.12
4. Step 4: Simplify right side
   3,870.74x = 11,709,362.43
5. Step 5: Solve for x
   x = 11,709,362.43/3,870.74
6. Step 6: Final answer
   x = 3,025.10