Finding the Fourth Proportional to 2,686.72, 4,030.32 and 738.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.72 : 4,030.32 = 738.93 : x
2. Step 2: Convert to fraction form
   2,686.72/4,030.32 = 738.93/x
3. Step 3: Cross multiply
   2,686.72x = 4,030.32 × 738.93
4. Step 4: Simplify right side
   2,686.72x = 2,978,124.36
5. Step 5: Solve for x
   x = 2,978,124.36/2,686.72
6. Step 6: Final answer
   x = 1,108.46