Finding the Fourth Proportional to 1,900.77, 2,852.52 and 1,080.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.77 : 2,852.52 = 1,080.64 : x
2. Step 2: Convert to fraction form
   1,900.77/2,852.52 = 1,080.64/x
3. Step 3: Cross multiply
   1,900.77x = 2,852.52 × 1,080.64
4. Step 4: Simplify right side
   1,900.77x = 3,082,546.73
5. Step 5: Solve for x
   x = 3,082,546.73/1,900.77
6. Step 6: Final answer
   x = 1,621.74