Finding the Fourth Proportional to 1,558.47, 2,150.78 and 895.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558.47 : 2,150.78 = 895.42 : x
2. Step 2: Convert to fraction form
   1,558.47/2,150.78 = 895.42/x
3. Step 3: Cross multiply
   1,558.47x = 2,150.78 × 895.42
4. Step 4: Simplify right side
   1,558.47x = 1,925,843.08
5. Step 5: Solve for x
   x = 1,925,843.08/1,558.47
6. Step 6: Final answer
   x = 1,235.73