Finding the Fourth Proportional to 2,072.38, 3,101.23 and 1,291.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.38 : 3,101.23 = 1,291.74 : x
2. Step 2: Convert to fraction form
   2,072.38/3,101.23 = 1,291.74/x
3. Step 3: Cross multiply
   2,072.38x = 3,101.23 × 1,291.74
4. Step 4: Simplify right side
   2,072.38x = 4,005,976.38
5. Step 5: Solve for x
   x = 4,005,976.38/2,072.38
6. Step 6: Final answer
   x = 1,933.03