Finding the Fourth Proportional to 3,411.91, 5,109.76 and 2,175.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,411.91 : 5,109.76 = 2,175.45 : x
2. Step 2: Convert to fraction form
   3,411.91/5,109.76 = 2,175.45/x
3. Step 3: Cross multiply
   3,411.91x = 5,109.76 × 2,175.45
4. Step 4: Simplify right side
   3,411.91x = 11,116,027.39
5. Step 5: Solve for x
   x = 11,116,027.39/3,411.91
6. Step 6: Final answer
   x = 3,258.01