Finding the Fourth Proportional to 3,308.99, 4,963.53 and 843.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,308.99 : 4,963.53 = 843.86 : x
2. Step 2: Convert to fraction form
   3,308.99/4,963.53 = 843.86/x
3. Step 3: Cross multiply
   3,308.99x = 4,963.53 × 843.86
4. Step 4: Simplify right side
   3,308.99x = 4,188,499.61
5. Step 5: Solve for x
   x = 4,188,499.61/3,308.99
6. Step 6: Final answer
   x = 1,265.80