Finding the Fourth Proportional to 1,968.91, 2,952.35 and 1,148.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968.91 : 2,952.35 = 1,148.78 : x
2. Step 2: Convert to fraction form
   1,968.91/2,952.35 = 1,148.78/x
3. Step 3: Cross multiply
   1,968.91x = 2,952.35 × 1,148.78
4. Step 4: Simplify right side
   1,968.91x = 3,391,606.58
5. Step 5: Solve for x
   x = 3,391,606.58/1,968.91
6. Step 6: Final answer
   x = 1,722.58