Finding the Fourth Proportional to 3,191.05, 4,785.88 and 999.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,191.05 : 4,785.88 = 999.49 : x
2. Step 2: Convert to fraction form
   3,191.05/4,785.88 = 999.49/x
3. Step 3: Cross multiply
   3,191.05x = 4,785.88 × 999.49
4. Step 4: Simplify right side
   3,191.05x = 4,783,410.27
5. Step 5: Solve for x
   x = 4,783,410.27/3,191.05
6. Step 6: Final answer
   x = 1,499.01