Finding the Fourth Proportional to 2,315.78, 3,473.31 and 1,083.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.78 : 3,473.31 = 1,083.08 : x
2. Step 2: Convert to fraction form
   2,315.78/3,473.31 = 1,083.08/x
3. Step 3: Cross multiply
   2,315.78x = 3,473.31 × 1,083.08
4. Step 4: Simplify right side
   2,315.78x = 3,761,872.59
5. Step 5: Solve for x
   x = 3,761,872.59/2,315.78
6. Step 6: Final answer
   x = 1,624.45