Finding the Fourth Proportional to 2,591.76, 3,888.27 and 742.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.76 : 3,888.27 = 742.92 : x
2. Step 2: Convert to fraction form
   2,591.76/3,888.27 = 742.92/x
3. Step 3: Cross multiply
   2,591.76x = 3,888.27 × 742.92
4. Step 4: Simplify right side
   2,591.76x = 2,888,673.55
5. Step 5: Solve for x
   x = 2,888,673.55/2,591.76
6. Step 6: Final answer
   x = 1,114.56