Finding the Fourth Proportional to 1,435.50, 1,981.35 and 814.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.50 : 1,981.35 = 814.86 : x
2. Step 2: Convert to fraction form
   1,435.50/1,981.35 = 814.86/x
3. Step 3: Cross multiply
   1,435.50x = 1,981.35 × 814.86
4. Step 4: Simplify right side
   1,435.50x = 1,614,522.86
5. Step 5: Solve for x
   x = 1,614,522.86/1,435.50
6. Step 6: Final answer
   x = 1,124.71