Finding the Fourth Proportional to 2,147.22, 2,960.82 and 1,558.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.22 : 2,960.82 = 1,558.08 : x
2. Step 2: Convert to fraction form
   2,147.22/2,960.82 = 1,558.08/x
3. Step 3: Cross multiply
   2,147.22x = 2,960.82 × 1,558.08
4. Step 4: Simplify right side
   2,147.22x = 4,613,194.43
5. Step 5: Solve for x
   x = 4,613,194.43/2,147.22
6. Step 6: Final answer
   x = 2,148.45