Finding the Fourth Proportional to 2,668.82, 4,003.56 and 913.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,668.82 : 4,003.56 = 913.34 : x
2. Step 2: Convert to fraction form
   2,668.82/4,003.56 = 913.34/x
3. Step 3: Cross multiply
   2,668.82x = 4,003.56 × 913.34
4. Step 4: Simplify right side
   2,668.82x = 3,656,621.50
5. Step 5: Solve for x
   x = 3,656,621.50/2,668.82
6. Step 6: Final answer
   x = 1,370.13