Finding the Fourth Proportional to 2,313.56, 3,470.78 and 852.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,313.56 : 3,470.78 = 852.83 : x
2. Step 2: Convert to fraction form
   2,313.56/3,470.78 = 852.83/x
3. Step 3: Cross multiply
   2,313.56x = 3,470.78 × 852.83
4. Step 4: Simplify right side
   2,313.56x = 2,959,983.10
5. Step 5: Solve for x
   x = 2,959,983.10/2,313.56
6. Step 6: Final answer
   x = 1,279.40