Finding the Fourth Proportional to 2,083.82, 2,875.29 and 1,286.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.82 : 2,875.29 = 1,286.51 : x
2. Step 2: Convert to fraction form
   2,083.82/2,875.29 = 1,286.51/x
3. Step 3: Cross multiply
   2,083.82x = 2,875.29 × 1,286.51
4. Step 4: Simplify right side
   2,083.82x = 3,699,070.14
5. Step 5: Solve for x
   x = 3,699,070.14/2,083.82
6. Step 6: Final answer
   x = 1,775.14