Finding the Fourth Proportional to 1,334.52, 1,842.12 and 810.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.52 : 1,842.12 = 810.54 : x
2. Step 2: Convert to fraction form
   1,334.52/1,842.12 = 810.54/x
3. Step 3: Cross multiply
   1,334.52x = 1,842.12 × 810.54
4. Step 4: Simplify right side
   1,334.52x = 1,493,111.94
5. Step 5: Solve for x
   x = 1,493,111.94/1,334.52
6. Step 6: Final answer
   x = 1,118.84