Finding the Fourth Proportional to 3,113.05, 4,667.83 and 1,031.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,113.05 : 4,667.83 = 1,031.91 : x
2. Step 2: Convert to fraction form
   3,113.05/4,667.83 = 1,031.91/x
3. Step 3: Cross multiply
   3,113.05x = 4,667.83 × 1,031.91
4. Step 4: Simplify right side
   3,113.05x = 4,816,806.29
5. Step 5: Solve for x
   x = 4,816,806.29/3,113.05
6. Step 6: Final answer
   x = 1,547.30