Finding the Fourth Proportional to 1,694.72, 2,338.68 and 986.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,694.72 : 2,338.68 = 986.24 : x
2. Step 2: Convert to fraction form
   1,694.72/2,338.68 = 986.24/x
3. Step 3: Cross multiply
   1,694.72x = 2,338.68 × 986.24
4. Step 4: Simplify right side
   1,694.72x = 2,306,499.76
5. Step 5: Solve for x
   x = 2,306,499.76/1,694.72
6. Step 6: Final answer
   x = 1,360.99