Finding the Fourth Proportional to 1,651.98, 2,479.17 and 1,331.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,651.98 : 2,479.17 = 1,331.22 : x
2. Step 2: Convert to fraction form
   1,651.98/2,479.17 = 1,331.22/x
3. Step 3: Cross multiply
   1,651.98x = 2,479.17 × 1,331.22
4. Step 4: Simplify right side
   1,651.98x = 3,300,320.69
5. Step 5: Solve for x
   x = 3,300,320.69/1,651.98
6. Step 6: Final answer
   x = 1,997.80