Finding the Fourth Proportional to 2,141.44, 3,210.24 and 1,112.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.44 : 3,210.24 = 1,112.32 : x
2. Step 2: Convert to fraction form
   2,141.44/3,210.24 = 1,112.32/x
3. Step 3: Cross multiply
   2,141.44x = 3,210.24 × 1,112.32
4. Step 4: Simplify right side
   2,141.44x = 3,570,814.16
5. Step 5: Solve for x
   x = 3,570,814.16/2,141.44
6. Step 6: Final answer
   x = 1,667.48