Finding the Fourth Proportional to 1,491.02, 2,057.61 and 827.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491.02 : 2,057.61 = 827.94 : x
2. Step 2: Convert to fraction form
   1,491.02/2,057.61 = 827.94/x
3. Step 3: Cross multiply
   1,491.02x = 2,057.61 × 827.94
4. Step 4: Simplify right side
   1,491.02x = 1,703,577.62
5. Step 5: Solve for x
   x = 1,703,577.62/1,491.02
6. Step 6: Final answer
   x = 1,142.56