Finding the Fourth Proportional to 3,456.56, 5,184.72 and 1,148

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456.56 : 5,184.72 = 1,148 : x
2. Step 2: Convert to fraction form
   3,456.56/5,184.72 = 1,148/x
3. Step 3: Cross multiply
   3,456.56x = 5,184.72 × 1,148
4. Step 4: Simplify right side
   3,456.56x = 5,952,058.56
5. Step 5: Solve for x
   x = 5,952,058.56/3,456.56
6. Step 6: Final answer
   x = 1,721.96