Finding the Fourth Proportional to 2,412.86, 3,619.15 and 852.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.86 : 3,619.15 = 852.94 : x
2. Step 2: Convert to fraction form
   2,412.86/3,619.15 = 852.94/x
3. Step 3: Cross multiply
   2,412.86x = 3,619.15 × 852.94
4. Step 4: Simplify right side
   2,412.86x = 3,086,917.80
5. Step 5: Solve for x
   x = 3,086,917.80/2,412.86
6. Step 6: Final answer
   x = 1,279.36