Finding the Fourth Proportional to 1,446.89, 2,168.75 and 743.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.89 : 2,168.75 = 743.13 : x
2. Step 2: Convert to fraction form
   1,446.89/2,168.75 = 743.13/x
3. Step 3: Cross multiply
   1,446.89x = 2,168.75 × 743.13
4. Step 4: Simplify right side
   1,446.89x = 1,611,659.47
5. Step 5: Solve for x
   x = 1,611,659.47/1,446.89
6. Step 6: Final answer
   x = 1,113.88