Finding the Fourth Proportional to 1,491.41, 2,058.18 and 828.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491.41 : 2,058.18 = 828.24 : x
2. Step 2: Convert to fraction form
   1,491.41/2,058.18 = 828.24/x
3. Step 3: Cross multiply
   1,491.41x = 2,058.18 × 828.24
4. Step 4: Simplify right side
   1,491.41x = 1,704,667.00
5. Step 5: Solve for x
   x = 1,704,667.00/1,491.41
6. Step 6: Final answer
   x = 1,142.99