Finding the Fourth Proportional to 1,341.54, 1,851.34 and 810.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.54 : 1,851.34 = 810.46 : x
2. Step 2: Convert to fraction form
   1,341.54/1,851.34 = 810.46/x
3. Step 3: Cross multiply
   1,341.54x = 1,851.34 × 810.46
4. Step 4: Simplify right side
   1,341.54x = 1,500,437.02
5. Step 5: Solve for x
   x = 1,500,437.02/1,341.54
6. Step 6: Final answer
   x = 1,118.44