Finding the Fourth Proportional to 1,929.17, 2,662.74 and 1,231.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929.17 : 2,662.74 = 1,231.76 : x
2. Step 2: Convert to fraction form
   1,929.17/2,662.74 = 1,231.76/x
3. Step 3: Cross multiply
   1,929.17x = 2,662.74 × 1,231.76
4. Step 4: Simplify right side
   1,929.17x = 3,279,843.31
5. Step 5: Solve for x
   x = 3,279,843.31/1,929.17
6. Step 6: Final answer
   x = 1,700.14