Finding the Fourth Proportional to 3,117.99, 4,679.72 and 1,269.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,117.99 : 4,679.72 = 1,269.10 : x
2. Step 2: Convert to fraction form
   3,117.99/4,679.72 = 1,269.10/x
3. Step 3: Cross multiply
   3,117.99x = 4,679.72 × 1,269.10
4. Step 4: Simplify right side
   3,117.99x = 5,939,002.91
5. Step 5: Solve for x
   x = 5,939,002.91/3,117.99
6. Step 6: Final answer
   x = 1,904.75