Finding the Fourth Proportional to 3,147.64, 4,718.39 and 1,171.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,147.64 : 4,718.39 = 1,171.82 : x
2. Step 2: Convert to fraction form
   3,147.64/4,718.39 = 1,171.82/x
3. Step 3: Cross multiply
   3,147.64x = 4,718.39 × 1,171.82
4. Step 4: Simplify right side
   3,147.64x = 5,529,109.71
5. Step 5: Solve for x
   x = 5,529,109.71/3,147.64
6. Step 6: Final answer
   x = 1,756.59