Finding the Fourth Proportional to 4,081.47, 6,120.31 and 1,307.52

Step by Step Solution

1. Step 1: Write the proportion equation
   4,081.47 : 6,120.31 = 1,307.52 : x
2. Step 2: Convert to fraction form
   4,081.47/6,120.31 = 1,307.52/x
3. Step 3: Cross multiply
   4,081.47x = 6,120.31 × 1,307.52
4. Step 4: Simplify right side
   4,081.47x = 8,002,427.73
5. Step 5: Solve for x
   x = 8,002,427.73/4,081.47
6. Step 6: Final answer
   x = 1,960.67