Finding the Fourth Proportional to 2,179.82, 3,008.16 and 1,248.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.82 : 3,008.16 = 1,248.32 : x
2. Step 2: Convert to fraction form
   2,179.82/3,008.16 = 1,248.32/x
3. Step 3: Cross multiply
   2,179.82x = 3,008.16 × 1,248.32
4. Step 4: Simplify right side
   2,179.82x = 3,755,146.29
5. Step 5: Solve for x
   x = 3,755,146.29/2,179.82
6. Step 6: Final answer
   x = 1,722.69