Finding the Fourth Proportional to 3,451.30, 5,176.22 and 1,111.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,451.30 : 5,176.22 = 1,111.51 : x
2. Step 2: Convert to fraction form
   3,451.30/5,176.22 = 1,111.51/x
3. Step 3: Cross multiply
   3,451.30x = 5,176.22 × 1,111.51
4. Step 4: Simplify right side
   3,451.30x = 5,753,425.37
5. Step 5: Solve for x
   x = 5,753,425.37/3,451.30
6. Step 6: Final answer
   x = 1,667.03