Finding the Fourth Proportional to 1,443.16, 1,991.82 and 1,132.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.16 : 1,991.82 = 1,132.12 : x
2. Step 2: Convert to fraction form
   1,443.16/1,991.82 = 1,132.12/x
3. Step 3: Cross multiply
   1,443.16x = 1,991.82 × 1,132.12
4. Step 4: Simplify right side
   1,443.16x = 2,254,979.26
5. Step 5: Solve for x
   x = 2,254,979.26/1,443.16
6. Step 6: Final answer
   x = 1,562.53