Finding the Fourth Proportional to 1,900.72, 2,851.35 and 804.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.72 : 2,851.35 = 804.88 : x
2. Step 2: Convert to fraction form
   1,900.72/2,851.35 = 804.88/x
3. Step 3: Cross multiply
   1,900.72x = 2,851.35 × 804.88
4. Step 4: Simplify right side
   1,900.72x = 2,294,994.59
5. Step 5: Solve for x
   x = 2,294,994.59/1,900.72
6. Step 6: Final answer
   x = 1,207.43