Finding the Fourth Proportional to 3,450.86, 5,176.96 and 1,111.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,450.86 : 5,176.96 = 1,111.48 : x
2. Step 2: Convert to fraction form
   3,450.86/5,176.96 = 1,111.48/x
3. Step 3: Cross multiply
   3,450.86x = 5,176.96 × 1,111.48
4. Step 4: Simplify right side
   3,450.86x = 5,754,087.50
5. Step 5: Solve for x
   x = 5,754,087.50/3,450.86
6. Step 6: Final answer
   x = 1,667.44