Finding the Fourth Proportional to 1,400.73, 1,932.58 and 811.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.73 : 1,932.58 = 811.18 : x
2. Step 2: Convert to fraction form
   1,400.73/1,932.58 = 811.18/x
3. Step 3: Cross multiply
   1,400.73x = 1,932.58 × 811.18
4. Step 4: Simplify right side
   1,400.73x = 1,567,670.24
5. Step 5: Solve for x
   x = 1,567,670.24/1,400.73
6. Step 6: Final answer
   x = 1,119.18