Finding the Fourth Proportional to 2,722.71, 4,084.06 and 1,902.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.71 : 4,084.06 = 1,902.59 : x
2. Step 2: Convert to fraction form
   2,722.71/4,084.06 = 1,902.59/x
3. Step 3: Cross multiply
   2,722.71x = 4,084.06 × 1,902.59
4. Step 4: Simplify right side
   2,722.71x = 7,770,271.30
5. Step 5: Solve for x
   x = 7,770,271.30/2,722.71
6. Step 6: Final answer
   x = 2,853.87