Finding the Fourth Proportional to 1,519.71, 2,279.29 and 697.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.71 : 2,279.29 = 697.82 : x
2. Step 2: Convert to fraction form
   1,519.71/2,279.29 = 697.82/x
3. Step 3: Cross multiply
   1,519.71x = 2,279.29 × 697.82
4. Step 4: Simplify right side
   1,519.71x = 1,590,522.32
5. Step 5: Solve for x
   x = 1,590,522.32/1,519.71
6. Step 6: Final answer
   x = 1,046.59