Finding the Fourth Proportional to 4,740.43, 7,111.56 and 1,818.51

Step by Step Solution

1. Step 1: Write the proportion equation
   4,740.43 : 7,111.56 = 1,818.51 : x
2. Step 2: Convert to fraction form
   4,740.43/7,111.56 = 1,818.51/x
3. Step 3: Cross multiply
   4,740.43x = 7,111.56 × 1,818.51
4. Step 4: Simplify right side
   4,740.43x = 12,932,443.13
5. Step 5: Solve for x
   x = 12,932,443.13/4,740.43
6. Step 6: Final answer
   x = 2,728.11