Finding the Fourth Proportional to 3,111.43, 4,667.61 and 1,137.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.43 : 4,667.61 = 1,137.16 : x
2. Step 2: Convert to fraction form
   3,111.43/4,667.61 = 1,137.16/x
3. Step 3: Cross multiply
   3,111.43x = 4,667.61 × 1,137.16
4. Step 4: Simplify right side
   3,111.43x = 5,307,819.39
5. Step 5: Solve for x
   x = 5,307,819.39/3,111.43
6. Step 6: Final answer
   x = 1,705.91