Finding the Fourth Proportional to 2,556.61, 3,835.00 and 996.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.61 : 3,835.00 = 996.55 : x
2. Step 2: Convert to fraction form
   2,556.61/3,835.00 = 996.55/x
3. Step 3: Cross multiply
   2,556.61x = 3,835.00 × 996.55
4. Step 4: Simplify right side
   2,556.61x = 3,821,776.87
5. Step 5: Solve for x
   x = 3,821,776.87/2,556.61
6. Step 6: Final answer
   x = 1,494.86