Finding the Fourth Proportional to 2,081.88, 2,873.40 and 1,915.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.88 : 2,873.40 = 1,915.82 : x
2. Step 2: Convert to fraction form
   2,081.88/2,873.40 = 1,915.82/x
3. Step 3: Cross multiply
   2,081.88x = 2,873.40 × 1,915.82
4. Step 4: Simplify right side
   2,081.88x = 5,504,917.19
5. Step 5: Solve for x
   x = 5,504,917.19/2,081.88
6. Step 6: Final answer
   x = 2,644.20