Finding the Fourth Proportional to 1,775.76, 2,665.24 and 1,485.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,775.76 : 2,665.24 = 1,485.06 : x
2. Step 2: Convert to fraction form
   1,775.76/2,665.24 = 1,485.06/x
3. Step 3: Cross multiply
   1,775.76x = 2,665.24 × 1,485.06
4. Step 4: Simplify right side
   1,775.76x = 3,958,041.31
5. Step 5: Solve for x
   x = 3,958,041.31/1,775.76
6. Step 6: Final answer
   x = 2,228.93