Finding the Fourth Proportional to 2,591.71, 3,884.79 and 1,029.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.71 : 3,884.79 = 1,029.55 : x
2. Step 2: Convert to fraction form
   2,591.71/3,884.79 = 1,029.55/x
3. Step 3: Cross multiply
   2,591.71x = 3,884.79 × 1,029.55
4. Step 4: Simplify right side
   2,591.71x = 3,999,585.54
5. Step 5: Solve for x
   x = 3,999,585.54/2,591.71
6. Step 6: Final answer
   x = 1,543.22