Finding the Fourth Proportional to 3,117.69, 4,673.50 and 1,142.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,117.69 : 4,673.50 = 1,142.10 : x
2. Step 2: Convert to fraction form
   3,117.69/4,673.50 = 1,142.10/x
3. Step 3: Cross multiply
   3,117.69x = 4,673.50 × 1,142.10
4. Step 4: Simplify right side
   3,117.69x = 5,337,601.49
5. Step 5: Solve for x
   x = 5,337,601.49/3,117.69
6. Step 6: Final answer
   x = 1,712.04