Finding the Fourth Proportional to 2,150.34, 3,223.89 and 1,109.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.34 : 3,223.89 = 1,109.90 : x
2. Step 2: Convert to fraction form
   2,150.34/3,223.89 = 1,109.90/x
3. Step 3: Cross multiply
   2,150.34x = 3,223.89 × 1,109.90
4. Step 4: Simplify right side
   2,150.34x = 3,578,179.39
5. Step 5: Solve for x
   x = 3,578,179.39/2,150.34
6. Step 6: Final answer
   x = 1,664.01