Finding the Fourth Proportional to 950.93, 1,315.87 and 810.82

Step by Step Solution

1. Step 1: Write the proportion equation
   950.93 : 1,315.87 = 810.82 : x
2. Step 2: Convert to fraction form
   950.93/1,315.87 = 810.82/x
3. Step 3: Cross multiply
   950.93x = 1,315.87 × 810.82
4. Step 4: Simplify right side
   950.93x = 1,066,928.40
5. Step 5: Solve for x
   x = 1,066,928.40/950.93
6. Step 6: Final answer
   x = 1,121.99