Finding the Fourth Proportional to 3,714.69, 5,570.82 and 1,248.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.69 : 5,570.82 = 1,248.78 : x
2. Step 2: Convert to fraction form
   3,714.69/5,570.82 = 1,248.78/x
3. Step 3: Cross multiply
   3,714.69x = 5,570.82 × 1,248.78
4. Step 4: Simplify right side
   3,714.69x = 6,956,728.60
5. Step 5: Solve for x
   x = 6,956,728.60/3,714.69
6. Step 6: Final answer
   x = 1,872.76