Finding the Fourth Proportional to 2,151.40, 3,213.71 and 2,141.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.40 : 3,213.71 = 2,141.32 : x
2. Step 2: Convert to fraction form
   2,151.40/3,213.71 = 2,141.32/x
3. Step 3: Cross multiply
   2,151.40x = 3,213.71 × 2,141.32
4. Step 4: Simplify right side
   2,151.40x = 6,881,581.50
5. Step 5: Solve for x
   x = 6,881,581.50/2,151.40
6. Step 6: Final answer
   x = 3,198.65