Finding the Fourth Proportional to 2,371.90, 3,557.51 and 1,491.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,371.90 : 3,557.51 = 1,491.72 : x
2. Step 2: Convert to fraction form
   2,371.90/3,557.51 = 1,491.72/x
3. Step 3: Cross multiply
   2,371.90x = 3,557.51 × 1,491.72
4. Step 4: Simplify right side
   2,371.90x = 5,306,805.52
5. Step 5: Solve for x
   x = 5,306,805.52/2,371.90
6. Step 6: Final answer
   x = 2,237.37