Finding the Fourth Proportional to 1,406.87, 1,941.33 and 817.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.87 : 1,941.33 = 817.32 : x
2. Step 2: Convert to fraction form
   1,406.87/1,941.33 = 817.32/x
3. Step 3: Cross multiply
   1,406.87x = 1,941.33 × 817.32
4. Step 4: Simplify right side
   1,406.87x = 1,586,687.84
5. Step 5: Solve for x
   x = 1,586,687.84/1,406.87
6. Step 6: Final answer
   x = 1,127.81