Finding the Fourth Proportional to 2,315.60, 3,473.06 and 854.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.60 : 3,473.06 = 854.42 : x
2. Step 2: Convert to fraction form
   2,315.60/3,473.06 = 854.42/x
3. Step 3: Cross multiply
   2,315.60x = 3,473.06 × 854.42
4. Step 4: Simplify right side
   2,315.60x = 2,967,451.93
5. Step 5: Solve for x
   x = 2,967,451.93/2,315.60
6. Step 6: Final answer
   x = 1,281.50