Finding the Fourth Proportional to 1,776.66, 2,661.72 and 1,482.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.66 : 2,661.72 = 1,482.30 : x
2. Step 2: Convert to fraction form
   1,776.66/2,661.72 = 1,482.30/x
3. Step 3: Cross multiply
   1,776.66x = 2,661.72 × 1,482.30
4. Step 4: Simplify right side
   1,776.66x = 3,945,467.56
5. Step 5: Solve for x
   x = 3,945,467.56/1,776.66
6. Step 6: Final answer
   x = 2,220.72