Finding the Fourth Proportional to 1,490.27, 2,056.46 and 827.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.27 : 2,056.46 = 827.15 : x
2. Step 2: Convert to fraction form
   1,490.27/2,056.46 = 827.15/x
3. Step 3: Cross multiply
   1,490.27x = 2,056.46 × 827.15
4. Step 4: Simplify right side
   1,490.27x = 1,700,986.47
5. Step 5: Solve for x
   x = 1,700,986.47/1,490.27
6. Step 6: Final answer
   x = 1,141.40