Finding the Fourth Proportional to 2,050.55, 3,077.57 and 818.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,050.55 : 3,077.57 = 818.82 : x
2. Step 2: Convert to fraction form
   2,050.55/3,077.57 = 818.82/x
3. Step 3: Cross multiply
   2,050.55x = 3,077.57 × 818.82
4. Step 4: Simplify right side
   2,050.55x = 2,519,971.77
5. Step 5: Solve for x
   x = 2,519,971.77/2,050.55
6. Step 6: Final answer
   x = 1,228.93