Finding the Fourth Proportional to 1,406.97, 1,941.57 and 817.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.97 : 1,941.57 = 817.09 : x
2. Step 2: Convert to fraction form
   1,406.97/1,941.57 = 817.09/x
3. Step 3: Cross multiply
   1,406.97x = 1,941.57 × 817.09
4. Step 4: Simplify right side
   1,406.97x = 1,586,432.58
5. Step 5: Solve for x
   x = 1,586,432.58/1,406.97
6. Step 6: Final answer
   x = 1,127.55