Finding the Fourth Proportional to 1,435.86, 1,981.56 and 806.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.86 : 1,981.56 = 806.52 : x
2. Step 2: Convert to fraction form
   1,435.86/1,981.56 = 806.52/x
3. Step 3: Cross multiply
   1,435.86x = 1,981.56 × 806.52
4. Step 4: Simplify right side
   1,435.86x = 1,598,167.77
5. Step 5: Solve for x
   x = 1,598,167.77/1,435.86
6. Step 6: Final answer
   x = 1,113.04