Finding the Fourth Proportional to 1,978.29, 2,968.46 and 1,434.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.29 : 2,968.46 = 1,434.96 : x
2. Step 2: Convert to fraction form
   1,978.29/2,968.46 = 1,434.96/x
3. Step 3: Cross multiply
   1,978.29x = 2,968.46 × 1,434.96
4. Step 4: Simplify right side
   1,978.29x = 4,259,615.12
5. Step 5: Solve for x
   x = 4,259,615.12/1,978.29
6. Step 6: Final answer
   x = 2,153.18