Finding the Fourth Proportional to 1,501.98, 2,253.22 and 680.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.98 : 2,253.22 = 680.22 : x
2. Step 2: Convert to fraction form
   1,501.98/2,253.22 = 680.22/x
3. Step 3: Cross multiply
   1,501.98x = 2,253.22 × 680.22
4. Step 4: Simplify right side
   1,501.98x = 1,532,685.31
5. Step 5: Solve for x
   x = 1,532,685.31/1,501.98
6. Step 6: Final answer
   x = 1,020.44