Finding the Fourth Proportional to 2,083.39, 2,875.30 and 1,316.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.39 : 2,875.30 = 1,316.89 : x
2. Step 2: Convert to fraction form
   2,083.39/2,875.30 = 1,316.89/x
3. Step 3: Cross multiply
   2,083.39x = 2,875.30 × 1,316.89
4. Step 4: Simplify right side
   2,083.39x = 3,786,454.12
5. Step 5: Solve for x
   x = 3,786,454.12/2,083.39
6. Step 6: Final answer
   x = 1,817.45