Finding the Fourth Proportional to 1,404.11, 1,937.86 and 814.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.11 : 1,937.86 = 814.83 : x
2. Step 2: Convert to fraction form
   1,404.11/1,937.86 = 814.83/x
3. Step 3: Cross multiply
   1,404.11x = 1,937.86 × 814.83
4. Step 4: Simplify right side
   1,404.11x = 1,579,022.39
5. Step 5: Solve for x
   x = 1,579,022.39/1,404.11
6. Step 6: Final answer
   x = 1,124.57