Finding the Fourth Proportional to 2,007.98, 2,772.28 and 1,379.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.98 : 2,772.28 = 1,379.56 : x
2. Step 2: Convert to fraction form
   2,007.98/2,772.28 = 1,379.56/x
3. Step 3: Cross multiply
   2,007.98x = 2,772.28 × 1,379.56
4. Step 4: Simplify right side
   2,007.98x = 3,824,526.60
5. Step 5: Solve for x
   x = 3,824,526.60/2,007.98
6. Step 6: Final answer
   x = 1,904.66