Finding the Fourth Proportional to 3,112.41, 4,669.47 and 1,264.85

Step by Step Solution

1. Step 1: Write the proportion equation
   3,112.41 : 4,669.47 = 1,264.85 : x
2. Step 2: Convert to fraction form
   3,112.41/4,669.47 = 1,264.85/x
3. Step 3: Cross multiply
   3,112.41x = 4,669.47 × 1,264.85
4. Step 4: Simplify right side
   3,112.41x = 5,906,155.78
5. Step 5: Solve for x
   x = 5,906,155.78/3,112.41
6. Step 6: Final answer
   x = 1,897.61