Finding the Fourth Proportional to 1,333.76, 1,840.92 and 810.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.76 : 1,840.92 = 810.23 : x
2. Step 2: Convert to fraction form
   1,333.76/1,840.92 = 810.23/x
3. Step 3: Cross multiply
   1,333.76x = 1,840.92 × 810.23
4. Step 4: Simplify right side
   1,333.76x = 1,491,569.76
5. Step 5: Solve for x
   x = 1,491,569.76/1,333.76
6. Step 6: Final answer
   x = 1,118.32