Finding the Fourth Proportional to 2,314.96, 3,473.78 and 855.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,314.96 : 3,473.78 = 855.12 : x
2. Step 2: Convert to fraction form
   2,314.96/3,473.78 = 855.12/x
3. Step 3: Cross multiply
   2,314.96x = 3,473.78 × 855.12
4. Step 4: Simplify right side
   2,314.96x = 2,970,498.75
5. Step 5: Solve for x
   x = 2,970,498.75/2,314.96
6. Step 6: Final answer
   x = 1,283.17