Finding the Fourth Proportional to 2,591.91, 3,578.04 and 1,529.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.91 : 3,578.04 = 1,529.33 : x
2. Step 2: Convert to fraction form
   2,591.91/3,578.04 = 1,529.33/x
3. Step 3: Cross multiply
   2,591.91x = 3,578.04 × 1,529.33
4. Step 4: Simplify right side
   2,591.91x = 5,471,986.02
5. Step 5: Solve for x
   x = 5,471,986.02/2,591.91
6. Step 6: Final answer
   x = 2,111.18