Finding the Fourth Proportional to 1,352.36, 1,866.61 and 814.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,352.36 : 1,866.61 = 814.59 : x
2. Step 2: Convert to fraction form
   1,352.36/1,866.61 = 814.59/x
3. Step 3: Cross multiply
   1,352.36x = 1,866.61 × 814.59
4. Step 4: Simplify right side
   1,352.36x = 1,520,522.86
5. Step 5: Solve for x
   x = 1,520,522.86/1,352.36
6. Step 6: Final answer
   x = 1,124.35