Finding the Fourth Proportional to 2,425.59, 3,638.27 and 694.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.59 : 3,638.27 = 694.22 : x
2. Step 2: Convert to fraction form
   2,425.59/3,638.27 = 694.22/x
3. Step 3: Cross multiply
   2,425.59x = 3,638.27 × 694.22
4. Step 4: Simplify right side
   2,425.59x = 2,525,743.34
5. Step 5: Solve for x
   x = 2,525,743.34/2,425.59
6. Step 6: Final answer
   x = 1,041.29