Finding the Fourth Proportional to 1,519.51, 2,276.68 and 1,322.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.51 : 2,276.68 = 1,322.30 : x
2. Step 2: Convert to fraction form
   1,519.51/2,276.68 = 1,322.30/x
3. Step 3: Cross multiply
   1,519.51x = 2,276.68 × 1,322.30
4. Step 4: Simplify right side
   1,519.51x = 3,010,456.15
5. Step 5: Solve for x
   x = 3,010,456.15/1,519.51
6. Step 6: Final answer
   x = 1,981.20