Finding the Fourth Proportional to 2,007.12, 2,770.52 and 1,417.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.12 : 2,770.52 = 1,417.96 : x
2. Step 2: Convert to fraction form
   2,007.12/2,770.52 = 1,417.96/x
3. Step 3: Cross multiply
   2,007.12x = 2,770.52 × 1,417.96
4. Step 4: Simplify right side
   2,007.12x = 3,928,486.54
5. Step 5: Solve for x
   x = 3,928,486.54/2,007.12
6. Step 6: Final answer
   x = 1,957.28