Finding the Fourth Proportional to 1,558.72, 2,154.18 and 1,141.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558.72 : 2,154.18 = 1,141.48 : x
2. Step 2: Convert to fraction form
   1,558.72/2,154.18 = 1,141.48/x
3. Step 3: Cross multiply
   1,558.72x = 2,154.18 × 1,141.48
4. Step 4: Simplify right side
   1,558.72x = 2,458,953.39
5. Step 5: Solve for x
   x = 2,458,953.39/1,558.72
6. Step 6: Final answer
   x = 1,577.55