Finding the Fourth Proportional to 2,591.96, 3,887.91 and 743.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.96 : 3,887.91 = 743.22 : x
2. Step 2: Convert to fraction form
   2,591.96/3,887.91 = 743.22/x
3. Step 3: Cross multiply
   2,591.96x = 3,887.91 × 743.22
4. Step 4: Simplify right side
   2,591.96x = 2,889,572.47
5. Step 5: Solve for x
   x = 2,889,572.47/2,591.96
6. Step 6: Final answer
   x = 1,114.82