Finding the Fourth Proportional to 1,401.01, 1,933.33 and 811.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.01 : 1,933.33 = 811.48 : x
2. Step 2: Convert to fraction form
   1,401.01/1,933.33 = 811.48/x
3. Step 3: Cross multiply
   1,401.01x = 1,933.33 × 811.48
4. Step 4: Simplify right side
   1,401.01x = 1,568,858.63
5. Step 5: Solve for x
   x = 1,568,858.63/1,401.01
6. Step 6: Final answer
   x = 1,119.81