Finding the Fourth Proportional to 4,705.23, 7,057.31 and 1,418.32

Step by Step Solution

1. Step 1: Write the proportion equation
   4,705.23 : 7,057.31 = 1,418.32 : x
2. Step 2: Convert to fraction form
   4,705.23/7,057.31 = 1,418.32/x
3. Step 3: Cross multiply
   4,705.23x = 7,057.31 × 1,418.32
4. Step 4: Simplify right side
   4,705.23x = 10,009,499.18
5. Step 5: Solve for x
   x = 10,009,499.18/4,705.23
6. Step 6: Final answer
   x = 2,127.31