Finding the Fourth Proportional to 1,978.34, 2,968.65 and 746.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.34 : 2,968.65 = 746.60 : x
2. Step 2: Convert to fraction form
   1,978.34/2,968.65 = 746.60/x
3. Step 3: Cross multiply
   1,978.34x = 2,968.65 × 746.60
4. Step 4: Simplify right side
   1,978.34x = 2,216,379.25
5. Step 5: Solve for x
   x = 2,216,379.25/1,978.34
6. Step 6: Final answer
   x = 1,120.33