Finding the Fourth Proportional to 2,503.69, 3,754.73 and 859.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.69 : 3,754.73 = 859.84 : x
2. Step 2: Convert to fraction form
   2,503.69/3,754.73 = 859.84/x
3. Step 3: Cross multiply
   2,503.69x = 3,754.73 × 859.84
4. Step 4: Simplify right side
   2,503.69x = 3,228,459.81
5. Step 5: Solve for x
   x = 3,228,459.81/2,503.69
6. Step 6: Final answer
   x = 1,289.48