Finding the Fourth Proportional to 3,081.47, 4,619.43 and 1,132.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,081.47 : 4,619.43 = 1,132.31 : x
2. Step 2: Convert to fraction form
   3,081.47/4,619.43 = 1,132.31/x
3. Step 3: Cross multiply
   3,081.47x = 4,619.43 × 1,132.31
4. Step 4: Simplify right side
   3,081.47x = 5,230,603.69
5. Step 5: Solve for x
   x = 5,230,603.69/3,081.47
6. Step 6: Final answer
   x = 1,697.44