Finding the Fourth Proportional to 5,288.72, 7,932.18 and 1,393.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,288.72 : 7,932.18 = 1,393.16 : x
2. Step 2: Convert to fraction form
   5,288.72/7,932.18 = 1,393.16/x
3. Step 3: Cross multiply
   5,288.72x = 7,932.18 × 1,393.16
4. Step 4: Simplify right side
   5,288.72x = 11,050,795.89
5. Step 5: Solve for x
   x = 11,050,795.89/5,288.72
6. Step 6: Final answer
   x = 2,089.50