Finding the Fourth Proportional to 3,112.31, 4,665.37 and 1,262.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,112.31 : 4,665.37 = 1,262.25 : x
2. Step 2: Convert to fraction form
   3,112.31/4,665.37 = 1,262.25/x
3. Step 3: Cross multiply
   3,112.31x = 4,665.37 × 1,262.25
4. Step 4: Simplify right side
   3,112.31x = 5,888,833.64
5. Step 5: Solve for x
   x = 5,888,833.64/3,112.31
6. Step 6: Final answer
   x = 1,892.11