Finding the Fourth Proportional to 1,968.72, 2,951.64 and 1,698

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968.72 : 2,951.64 = 1,698 : x
2. Step 2: Convert to fraction form
   1,968.72/2,951.64 = 1,698/x
3. Step 3: Cross multiply
   1,968.72x = 2,951.64 × 1,698
4. Step 4: Simplify right side
   1,968.72x = 5,011,884.72
5. Step 5: Solve for x
   x = 5,011,884.72/1,968.72
6. Step 6: Final answer
   x = 2,545.76