Finding the Fourth Proportional to 1,901.18, 2,852.37 and 805.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,901.18 : 2,852.37 = 805.83 : x
2. Step 2: Convert to fraction form
   1,901.18/2,852.37 = 805.83/x
3. Step 3: Cross multiply
   1,901.18x = 2,852.37 × 805.83
4. Step 4: Simplify right side
   1,901.18x = 2,298,525.32
5. Step 5: Solve for x
   x = 2,298,525.32/1,901.18
6. Step 6: Final answer
   x = 1,209.00