Finding the Fourth Proportional to 1,443.35, 2,162.94 and 784.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.35 : 2,162.94 = 784.69 : x
2. Step 2: Convert to fraction form
   1,443.35/2,162.94 = 784.69/x
3. Step 3: Cross multiply
   1,443.35x = 2,162.94 × 784.69
4. Step 4: Simplify right side
   1,443.35x = 1,697,229.04
5. Step 5: Solve for x
   x = 1,697,229.04/1,443.35
6. Step 6: Final answer
   x = 1,175.89