Finding the Fourth Proportional to 2,578.32, 3,558.02 and 1,516.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.32 : 3,558.02 = 1,516.10 : x
2. Step 2: Convert to fraction form
   2,578.32/3,558.02 = 1,516.10/x
3. Step 3: Cross multiply
   2,578.32x = 3,558.02 × 1,516.10
4. Step 4: Simplify right side
   2,578.32x = 5,394,288.75
5. Step 5: Solve for x
   x = 5,394,288.75/2,578.32
6. Step 6: Final answer
   x = 2,092.17