Finding the Fourth Proportional to 2,552.78, 3,523.91 and 1,558.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,552.78 : 3,523.91 = 1,558.41 : x
2. Step 2: Convert to fraction form
   2,552.78/3,523.91 = 1,558.41/x
3. Step 3: Cross multiply
   2,552.78x = 3,523.91 × 1,558.41
4. Step 4: Simplify right side
   2,552.78x = 5,491,696.58
5. Step 5: Solve for x
   x = 5,491,696.58/2,552.78
6. Step 6: Final answer
   x = 2,151.26