Finding the Fourth Proportional to 3,451.14, 5,176.86 and 1,111.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,451.14 : 5,176.86 = 1,111.25 : x
2. Step 2: Convert to fraction form
   3,451.14/5,176.86 = 1,111.25/x
3. Step 3: Cross multiply
   3,451.14x = 5,176.86 × 1,111.25
4. Step 4: Simplify right side
   3,451.14x = 5,752,759.79
5. Step 5: Solve for x
   x = 5,752,759.79/3,451.14
6. Step 6: Final answer
   x = 1,666.92