Finding the Fourth Proportional to 1,978.56, 2,968.45 and 746.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.56 : 2,968.45 = 746.35 : x
2. Step 2: Convert to fraction form
   1,978.56/2,968.45 = 746.35/x
3. Step 3: Cross multiply
   1,978.56x = 2,968.45 × 746.35
4. Step 4: Simplify right side
   1,978.56x = 2,215,493.37
5. Step 5: Solve for x
   x = 2,215,493.37/1,978.56
6. Step 6: Final answer
   x = 1,119.75