Finding the Fourth Proportional to 2,519.15, 3,771.63 and 1,900.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.15 : 3,771.63 = 1,900.89 : x
2. Step 2: Convert to fraction form
   2,519.15/3,771.63 = 1,900.89/x
3. Step 3: Cross multiply
   2,519.15x = 3,771.63 × 1,900.89
4. Step 4: Simplify right side
   2,519.15x = 7,169,453.75
5. Step 5: Solve for x
   x = 7,169,453.75/2,519.15
6. Step 6: Final answer
   x = 2,845.99