Finding the Fourth Proportional to 3,783.48, 5,676.86 and 1,316.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,783.48 : 5,676.86 = 1,316.96 : x
2. Step 2: Convert to fraction form
   3,783.48/5,676.86 = 1,316.96/x
3. Step 3: Cross multiply
   3,783.48x = 5,676.86 × 1,316.96
4. Step 4: Simplify right side
   3,783.48x = 7,476,162.58
5. Step 5: Solve for x
   x = 7,476,162.58/3,783.48
6. Step 6: Final answer
   x = 1,976.00