Finding the Fourth Proportional to 2,503.80, 3,455.69 and 2,083.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.80 : 3,455.69 = 2,083.59 : x
2. Step 2: Convert to fraction form
   2,503.80/3,455.69 = 2,083.59/x
3. Step 3: Cross multiply
   2,503.80x = 3,455.69 × 2,083.59
4. Step 4: Simplify right side
   2,503.80x = 7,200,230.71
5. Step 5: Solve for x
   x = 7,200,230.71/2,503.80
6. Step 6: Final answer
   x = 2,875.72