Finding the Fourth Proportional to 2,162.57, 2,985.26 and 1,491.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.57 : 2,985.26 = 1,491.28 : x
2. Step 2: Convert to fraction form
   2,162.57/2,985.26 = 1,491.28/x
3. Step 3: Cross multiply
   2,162.57x = 2,985.26 × 1,491.28
4. Step 4: Simplify right side
   2,162.57x = 4,451,843.61
5. Step 5: Solve for x
   x = 4,451,843.61/2,162.57
6. Step 6: Final answer
   x = 2,058.59