Finding the Fourth Proportional to 2,315.66, 3,473.37 and 854.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.66 : 3,473.37 = 854.69 : x
2. Step 2: Convert to fraction form
   2,315.66/3,473.37 = 854.69/x
3. Step 3: Cross multiply
   2,315.66x = 3,473.37 × 854.69
4. Step 4: Simplify right side
   2,315.66x = 2,968,654.61
5. Step 5: Solve for x
   x = 2,968,654.61/2,315.66
6. Step 6: Final answer
   x = 1,281.99