Finding the Fourth Proportional to 2,141.92, 3,214.05 and 1,491.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.92 : 3,214.05 = 1,491.40 : x
2. Step 2: Convert to fraction form
   2,141.92/3,214.05 = 1,491.40/x
3. Step 3: Cross multiply
   2,141.92x = 3,214.05 × 1,491.40
4. Step 4: Simplify right side
   2,141.92x = 4,793,434.17
5. Step 5: Solve for x
   x = 4,793,434.17/2,141.92
6. Step 6: Final answer
   x = 2,237.91