Finding the Fourth Proportional to 2,154.72, 2,974.87 and 1,491.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154.72 : 2,974.87 = 1,491.33 : x
2. Step 2: Convert to fraction form
   2,154.72/2,974.87 = 1,491.33/x
3. Step 3: Cross multiply
   2,154.72x = 2,974.87 × 1,491.33
4. Step 4: Simplify right side
   2,154.72x = 4,436,494.27
5. Step 5: Solve for x
   x = 4,436,494.27/2,154.72
6. Step 6: Final answer
   x = 2,058.97