Finding the Fourth Proportional to 1,977.98, 2,949.60 and 1,818.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,977.98 : 2,949.60 = 1,818.41 : x
2. Step 2: Convert to fraction form
   1,977.98/2,949.60 = 1,818.41/x
3. Step 3: Cross multiply
   1,977.98x = 2,949.60 × 1,818.41
4. Step 4: Simplify right side
   1,977.98x = 5,363,567.39
5. Step 5: Solve for x
   x = 5,363,567.39/1,977.98
6. Step 6: Final answer
   x = 2,711.65