Finding the Fourth Proportional to 2,426.12, 3,638.55 and 694.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.12 : 3,638.55 = 694.34 : x
2. Step 2: Convert to fraction form
   2,426.12/3,638.55 = 694.34/x
3. Step 3: Cross multiply
   2,426.12x = 3,638.55 × 694.34
4. Step 4: Simplify right side
   2,426.12x = 2,526,390.81
5. Step 5: Solve for x
   x = 2,526,390.81/2,426.12
6. Step 6: Final answer
   x = 1,041.33