Finding the Fourth Proportional to 2,688.30, 4,031.82 and 740.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.30 : 4,031.82 = 740.04 : x
2. Step 2: Convert to fraction form
   2,688.30/4,031.82 = 740.04/x
3. Step 3: Cross multiply
   2,688.30x = 4,031.82 × 740.04
4. Step 4: Simplify right side
   2,688.30x = 2,983,708.07
5. Step 5: Solve for x
   x = 2,983,708.07/2,688.30
6. Step 6: Final answer
   x = 1,109.89