Finding the Fourth Proportional to 3,162.79, 4,740.63 and 1,186.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,162.79 : 4,740.63 = 1,186.50 : x
2. Step 2: Convert to fraction form
   3,162.79/4,740.63 = 1,186.50/x
3. Step 3: Cross multiply
   3,162.79x = 4,740.63 × 1,186.50
4. Step 4: Simplify right side
   3,162.79x = 5,624,757.50
5. Step 5: Solve for x
   x = 5,624,757.50/3,162.79
6. Step 6: Final answer
   x = 1,778.42