Finding the Fourth Proportional to 2,083.98, 2,875.94 and 1,187.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.98 : 2,875.94 = 1,187.85 : x
2. Step 2: Convert to fraction form
   2,083.98/2,875.94 = 1,187.85/x
3. Step 3: Cross multiply
   2,083.98x = 2,875.94 × 1,187.85
4. Step 4: Simplify right side
   2,083.98x = 3,416,185.33
5. Step 5: Solve for x
   x = 3,416,185.33/2,083.98
6. Step 6: Final answer
   x = 1,639.26