Finding the Fourth Proportional to 4,740.32, 7,105.78 and 2,662.07

Step by Step Solution

1. Step 1: Write the proportion equation
   4,740.32 : 7,105.78 = 2,662.07 : x
2. Step 2: Convert to fraction form
   4,740.32/7,105.78 = 2,662.07/x
3. Step 3: Cross multiply
   4,740.32x = 7,105.78 × 2,662.07
4. Step 4: Simplify right side
   4,740.32x = 18,916,036.59
5. Step 5: Solve for x
   x = 18,916,036.59/4,740.32
6. Step 6: Final answer
   x = 3,990.45