Finding the Fourth Proportional to 2,665.96, 3,996.52 and 933.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.96 : 3,996.52 = 933.64 : x
2. Step 2: Convert to fraction form
   2,665.96/3,996.52 = 933.64/x
3. Step 3: Cross multiply
   2,665.96x = 3,996.52 × 933.64
4. Step 4: Simplify right side
   2,665.96x = 3,731,310.93
5. Step 5: Solve for x
   x = 3,731,310.93/2,665.96
6. Step 6: Final answer
   x = 1,399.61