Finding the Fourth Proportional to 2,169.59, 2,990.52 and 1,382.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,169.59 : 2,990.52 = 1,382.27 : x
2. Step 2: Convert to fraction form
   2,169.59/2,990.52 = 1,382.27/x
3. Step 3: Cross multiply
   2,169.59x = 2,990.52 × 1,382.27
4. Step 4: Simplify right side
   2,169.59x = 4,133,691.13
5. Step 5: Solve for x
   x = 4,133,691.13/2,169.59
6. Step 6: Final answer
   x = 1,905.29