Finding the Fourth Proportional to 1,818.77, 2,510.22 and 1,072.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818.77 : 2,510.22 = 1,072.68 : x
2. Step 2: Convert to fraction form
   1,818.77/2,510.22 = 1,072.68/x
3. Step 3: Cross multiply
   1,818.77x = 2,510.22 × 1,072.68
4. Step 4: Simplify right side
   1,818.77x = 2,692,662.79
5. Step 5: Solve for x
   x = 2,692,662.79/1,818.77
6. Step 6: Final answer
   x = 1,480.49