Finding the Fourth Proportional to 1,443.30, 2,166.12 and 750.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.30 : 2,166.12 = 750.18 : x
2. Step 2: Convert to fraction form
   1,443.30/2,166.12 = 750.18/x
3. Step 3: Cross multiply
   1,443.30x = 2,166.12 × 750.18
4. Step 4: Simplify right side
   1,443.30x = 1,624,979.90
5. Step 5: Solve for x
   x = 1,624,979.90/1,443.30
6. Step 6: Final answer
   x = 1,125.88