Finding the Fourth Proportional to 3,922.62, 5,412.12 and 2,526.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,922.62 : 5,412.12 = 2,526.18 : x
2. Step 2: Convert to fraction form
   3,922.62/5,412.12 = 2,526.18/x
3. Step 3: Cross multiply
   3,922.62x = 5,412.12 × 2,526.18
4. Step 4: Simplify right side
   3,922.62x = 13,671,989.30
5. Step 5: Solve for x
   x = 13,671,989.30/3,922.62
6. Step 6: Final answer
   x = 3,485.42