Finding the Fourth Proportional to 1,900.86, 2,848.55 and 806.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.86 : 2,848.55 = 806.01 : x
2. Step 2: Convert to fraction form
   1,900.86/2,848.55 = 806.01/x
3. Step 3: Cross multiply
   1,900.86x = 2,848.55 × 806.01
4. Step 4: Simplify right side
   1,900.86x = 2,295,955.76
5. Step 5: Solve for x
   x = 2,295,955.76/1,900.86
6. Step 6: Final answer
   x = 1,207.85