Finding the Fourth Proportional to 2,993.19, 4,488.27 and 912.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,993.19 : 4,488.27 = 912.69 : x
2. Step 2: Convert to fraction form
   2,993.19/4,488.27 = 912.69/x
3. Step 3: Cross multiply
   2,993.19x = 4,488.27 × 912.69
4. Step 4: Simplify right side
   2,993.19x = 4,096,399.15
5. Step 5: Solve for x
   x = 4,096,399.15/2,993.19
6. Step 6: Final answer
   x = 1,368.57