Finding the Fourth Proportional to 3,007.86, 4,510.71 and 1,158.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,007.86 : 4,510.71 = 1,158.05 : x
2. Step 2: Convert to fraction form
   3,007.86/4,510.71 = 1,158.05/x
3. Step 3: Cross multiply
   3,007.86x = 4,510.71 × 1,158.05
4. Step 4: Simplify right side
   3,007.86x = 5,223,627.72
5. Step 5: Solve for x
   x = 5,223,627.72/3,007.86
6. Step 6: Final answer
   x = 1,736.66