Finding the Fourth Proportional to 3,339.18, 5,007.15 and 1,147.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,339.18 : 5,007.15 = 1,147.32 : x
2. Step 2: Convert to fraction form
   3,339.18/5,007.15 = 1,147.32/x
3. Step 3: Cross multiply
   3,339.18x = 5,007.15 × 1,147.32
4. Step 4: Simplify right side
   3,339.18x = 5,744,803.34
5. Step 5: Solve for x
   x = 5,744,803.34/3,339.18
6. Step 6: Final answer
   x = 1,720.42