Finding the Fourth Proportional to 3,188.16, 4,777.92 and 1,134.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,188.16 : 4,777.92 = 1,134.72 : x
2. Step 2: Convert to fraction form
   3,188.16/4,777.92 = 1,134.72/x
3. Step 3: Cross multiply
   3,188.16x = 4,777.92 × 1,134.72
4. Step 4: Simplify right side
   3,188.16x = 5,421,601.38
5. Step 5: Solve for x
   x = 5,421,601.38/3,188.16
6. Step 6: Final answer
   x = 1,700.54