Finding the Fourth Proportional to 2,059.78, 3,087.78 and 672.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.78 : 3,087.78 = 672.26 : x
2. Step 2: Convert to fraction form
   2,059.78/3,087.78 = 672.26/x
3. Step 3: Cross multiply
   2,059.78x = 3,087.78 × 672.26
4. Step 4: Simplify right side
   2,059.78x = 2,075,790.98
5. Step 5: Solve for x
   x = 2,075,790.98/2,059.78
6. Step 6: Final answer
   x = 1,007.77