Finding the Fourth Proportional to 2,174.31, 3,259.13 and 1,076.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.31 : 3,259.13 = 1,076.31 : x
2. Step 2: Convert to fraction form
   2,174.31/3,259.13 = 1,076.31/x
3. Step 3: Cross multiply
   2,174.31x = 3,259.13 × 1,076.31
4. Step 4: Simplify right side
   2,174.31x = 3,507,828.83
5. Step 5: Solve for x
   x = 3,507,828.83/2,174.31
6. Step 6: Final answer
   x = 1,613.31