Finding the Fourth Proportional to 2,994.81, 4,488.95 and 1,145.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,994.81 : 4,488.95 = 1,145.12 : x
2. Step 2: Convert to fraction form
   2,994.81/4,488.95 = 1,145.12/x
3. Step 3: Cross multiply
   2,994.81x = 4,488.95 × 1,145.12
4. Step 4: Simplify right side
   2,994.81x = 5,140,358.25
5. Step 5: Solve for x
   x = 5,140,358.25/2,994.81
6. Step 6: Final answer
   x = 1,716.42