Finding the Fourth Proportional to 2,982.55, 4,469.96 and 1,225.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,982.55 : 4,469.96 = 1,225.57 : x
2. Step 2: Convert to fraction form
   2,982.55/4,469.96 = 1,225.57/x
3. Step 3: Cross multiply
   2,982.55x = 4,469.96 × 1,225.57
4. Step 4: Simplify right side
   2,982.55x = 5,478,248.88
5. Step 5: Solve for x
   x = 5,478,248.88/2,982.55
6. Step 6: Final answer
   x = 1,836.77