Finding the Fourth Proportional to 3,336.89, 5,004.32 and 1,145.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,336.89 : 5,004.32 = 1,145.12 : x
2. Step 2: Convert to fraction form
   3,336.89/5,004.32 = 1,145.12/x
3. Step 3: Cross multiply
   3,336.89x = 5,004.32 × 1,145.12
4. Step 4: Simplify right side
   3,336.89x = 5,730,516.17
5. Step 5: Solve for x
   x = 5,730,516.17/3,336.89
6. Step 6: Final answer
   x = 1,717.33