Finding the Fourth Proportional to 2,503.35, 3,755.12 and 859.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.35 : 3,755.12 = 859.89 : x
2. Step 2: Convert to fraction form
   2,503.35/3,755.12 = 859.89/x
3. Step 3: Cross multiply
   2,503.35x = 3,755.12 × 859.89
4. Step 4: Simplify right side
   2,503.35x = 3,228,967.06
5. Step 5: Solve for x
   x = 3,228,967.06/2,503.35
6. Step 6: Final answer
   x = 1,289.86