Finding the Fourth Proportional to 1,775.58, 2,663.82 and 680.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,775.58 : 2,663.82 = 680.25 : x
2. Step 2: Convert to fraction form
   1,775.58/2,663.82 = 680.25/x
3. Step 3: Cross multiply
   1,775.58x = 2,663.82 × 680.25
4. Step 4: Simplify right side
   1,775.58x = 1,812,063.56
5. Step 5: Solve for x
   x = 1,812,063.56/1,775.58
6. Step 6: Final answer
   x = 1,020.55