Finding the Fourth Proportional to 1,365.30, 2,046.33 and 817.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.30 : 2,046.33 = 817.74 : x
2. Step 2: Convert to fraction form
   1,365.30/2,046.33 = 817.74/x
3. Step 3: Cross multiply
   1,365.30x = 2,046.33 × 817.74
4. Step 4: Simplify right side
   1,365.30x = 1,673,365.89
5. Step 5: Solve for x
   x = 1,673,365.89/1,365.30
6. Step 6: Final answer
   x = 1,225.64