Finding the Fourth Proportional to 1,400.42, 1,932.82 and 810.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.42 : 1,932.82 = 810.94 : x
2. Step 2: Convert to fraction form
   1,400.42/1,932.82 = 810.94/x
3. Step 3: Cross multiply
   1,400.42x = 1,932.82 × 810.94
4. Step 4: Simplify right side
   1,400.42x = 1,567,401.05
5. Step 5: Solve for x
   x = 1,567,401.05/1,400.42
6. Step 6: Final answer
   x = 1,119.24