Finding the Fourth Proportional to 2,607.62, 3,911.55 and 852.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.62 : 3,911.55 = 852.73 : x
2. Step 2: Convert to fraction form
   2,607.62/3,911.55 = 852.73/x
3. Step 3: Cross multiply
   2,607.62x = 3,911.55 × 852.73
4. Step 4: Simplify right side
   2,607.62x = 3,335,491.77
5. Step 5: Solve for x
   x = 3,335,491.77/2,607.62
6. Step 6: Final answer
   x = 1,279.13