Finding the Fourth Proportional to 2,315.56, 3,473.56 and 854.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.56 : 3,473.56 = 854.36 : x
2. Step 2: Convert to fraction form
   2,315.56/3,473.56 = 854.36/x
3. Step 3: Cross multiply
   2,315.56x = 3,473.56 × 854.36
4. Step 4: Simplify right side
   2,315.56x = 2,967,670.72
5. Step 5: Solve for x
   x = 2,967,670.72/2,315.56
6. Step 6: Final answer
   x = 1,281.62