Finding the Fourth Proportional to 3,079.47, 4,621.23 and 1,131.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,079.47 : 4,621.23 = 1,131.69 : x
2. Step 2: Convert to fraction form
   3,079.47/4,621.23 = 1,131.69/x
3. Step 3: Cross multiply
   3,079.47x = 4,621.23 × 1,131.69
4. Step 4: Simplify right side
   3,079.47x = 5,229,799.78
5. Step 5: Solve for x
   x = 5,229,799.78/3,079.47
6. Step 6: Final answer
   x = 1,698.28