Finding the Fourth Proportional to 1,968.96, 2,947.72 and 1,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968.96 : 2,947.72 = 1,144.72 : x
2. Step 2: Convert to fraction form
   1,968.96/2,947.72 = 1,144.72/x
3. Step 3: Cross multiply
   1,968.96x = 2,947.72 × 1,144.72
4. Step 4: Simplify right side
   1,968.96x = 3,374,314.04
5. Step 5: Solve for x
   x = 3,374,314.04/1,968.96
6. Step 6: Final answer
   x = 1,713.75