Finding the Fourth Proportional to 2,083.71, 2,875.77 and 1,187.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.71 : 2,875.77 = 1,187.58 : x
2. Step 2: Convert to fraction form
   2,083.71/2,875.77 = 1,187.58/x
3. Step 3: Cross multiply
   2,083.71x = 2,875.77 × 1,187.58
4. Step 4: Simplify right side
   2,083.71x = 3,415,217.72
5. Step 5: Solve for x
   x = 3,415,217.72/2,083.71
6. Step 6: Final answer
   x = 1,639.01