Finding the Fourth Proportional to 2,168.31, 3,252.37 and 1,072.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.31 : 3,252.37 = 1,072.34 : x
2. Step 2: Convert to fraction form
   2,168.31/3,252.37 = 1,072.34/x
3. Step 3: Cross multiply
   2,168.31x = 3,252.37 × 1,072.34
4. Step 4: Simplify right side
   2,168.31x = 3,487,646.45
5. Step 5: Solve for x
   x = 3,487,646.45/2,168.31
6. Step 6: Final answer
   x = 1,608.46