Finding the Fourth Proportional to 3,109.38, 4,665.37 and 1,261.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.38 : 4,665.37 = 1,261.81 : x
2. Step 2: Convert to fraction form
   3,109.38/4,665.37 = 1,261.81/x
3. Step 3: Cross multiply
   3,109.38x = 4,665.37 × 1,261.81
4. Step 4: Simplify right side
   3,109.38x = 5,886,810.52
5. Step 5: Solve for x
   x = 5,886,810.52/3,109.38
6. Step 6: Final answer
   x = 1,893.24