Finding the Fourth Proportional to 2,083.59, 2,876.72 and 1,691.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.59 : 2,876.72 = 1,691.55 : x
2. Step 2: Convert to fraction form
   2,083.59/2,876.72 = 1,691.55/x
3. Step 3: Cross multiply
   2,083.59x = 2,876.72 × 1,691.55
4. Step 4: Simplify right side
   2,083.59x = 4,866,107.26
5. Step 5: Solve for x
   x = 4,866,107.26/2,083.59
6. Step 6: Final answer
   x = 2,335.44