Finding the Fourth Proportional to 1,968.56, 2,949.86 and 1,187.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968.56 : 2,949.86 = 1,187.69 : x
2. Step 2: Convert to fraction form
   1,968.56/2,949.86 = 1,187.69/x
3. Step 3: Cross multiply
   1,968.56x = 2,949.86 × 1,187.69
4. Step 4: Simplify right side
   1,968.56x = 3,503,529.57
5. Step 5: Solve for x
   x = 3,503,529.57/1,968.56
6. Step 6: Final answer
   x = 1,779.74