Finding the Fourth Proportional to 2,085.83, 2,871.89 and 1,770.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.83 : 2,871.89 = 1,770.44 : x
2. Step 2: Convert to fraction form
   2,085.83/2,871.89 = 1,770.44/x
3. Step 3: Cross multiply
   2,085.83x = 2,871.89 × 1,770.44
4. Step 4: Simplify right side
   2,085.83x = 5,084,485.72
5. Step 5: Solve for x
   x = 5,084,485.72/2,085.83
6. Step 6: Final answer
   x = 2,437.63