Finding the Fourth Proportional to 2,919.38, 4,030.72 and 2,245.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,919.38 : 4,030.72 = 2,245.99 : x
2. Step 2: Convert to fraction form
   2,919.38/4,030.72 = 2,245.99/x
3. Step 3: Cross multiply
   2,919.38x = 4,030.72 × 2,245.99
4. Step 4: Simplify right side
   2,919.38x = 9,052,956.81
5. Step 5: Solve for x
   x = 9,052,956.81/2,919.38
6. Step 6: Final answer
   x = 3,100.99