Finding the Fourth Proportional to 3,152.59, 4,728.52 and 843.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,152.59 : 4,728.52 = 843.91 : x
2. Step 2: Convert to fraction form
   3,152.59/4,728.52 = 843.91/x
3. Step 3: Cross multiply
   3,152.59x = 4,728.52 × 843.91
4. Step 4: Simplify right side
   3,152.59x = 3,990,445.31
5. Step 5: Solve for x
   x = 3,990,445.31/3,152.59
6. Step 6: Final answer
   x = 1,265.77