Finding the Fourth Proportional to 1,556.16, 2,328.72 and 1,144.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.16 : 2,328.72 = 1,144.32 : x
2. Step 2: Convert to fraction form
   1,556.16/2,328.72 = 1,144.32/x
3. Step 3: Cross multiply
   1,556.16x = 2,328.72 × 1,144.32
4. Step 4: Simplify right side
   1,556.16x = 2,664,800.87
5. Step 5: Solve for x
   x = 2,664,800.87/1,556.16
6. Step 6: Final answer
   x = 1,712.42