Finding the Fourth Proportional to 1,143.86, 1,704.56 and 1,112.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143.86 : 1,704.56 = 1,112.18 : x
2. Step 2: Convert to fraction form
   1,143.86/1,704.56 = 1,112.18/x
3. Step 3: Cross multiply
   1,143.86x = 1,704.56 × 1,112.18
4. Step 4: Simplify right side
   1,143.86x = 1,895,763.46
5. Step 5: Solve for x
   x = 1,895,763.46/1,143.86
6. Step 6: Final answer
   x = 1,657.35