Finding the Fourth Proportional to 3,778.95, 5,668.89 and 1,005.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,778.95 : 5,668.89 = 1,005.72 : x
2. Step 2: Convert to fraction form
   3,778.95/5,668.89 = 1,005.72/x
3. Step 3: Cross multiply
   3,778.95x = 5,668.89 × 1,005.72
4. Step 4: Simplify right side
   3,778.95x = 5,701,291.02
5. Step 5: Solve for x
   x = 5,701,291.02/3,778.95
6. Step 6: Final answer
   x = 1,508.70