Finding the Fourth Proportional to 2,151.72, 3,227.60 and 591.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.72 : 3,227.60 = 591.69 : x
2. Step 2: Convert to fraction form
   2,151.72/3,227.60 = 591.69/x
3. Step 3: Cross multiply
   2,151.72x = 3,227.60 × 591.69
4. Step 4: Simplify right side
   2,151.72x = 1,909,735.69
5. Step 5: Solve for x
   x = 1,909,735.69/2,151.72
6. Step 6: Final answer
   x = 887.54