Finding the Fourth Proportional to 1,748.92, 2,412.56 and 1,216.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748.92 : 2,412.56 = 1,216.96 : x
2. Step 2: Convert to fraction form
   1,748.92/2,412.56 = 1,216.96/x
3. Step 3: Cross multiply
   1,748.92x = 2,412.56 × 1,216.96
4. Step 4: Simplify right side
   1,748.92x = 2,935,991.04
5. Step 5: Solve for x
   x = 2,935,991.04/1,748.92
6. Step 6: Final answer
   x = 1,678.74