Finding the Fourth Proportional to 2,591.81, 3,577.17 and 1,529.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.81 : 3,577.17 = 1,529.51 : x
2. Step 2: Convert to fraction form
   2,591.81/3,577.17 = 1,529.51/x
3. Step 3: Cross multiply
   2,591.81x = 3,577.17 × 1,529.51
4. Step 4: Simplify right side
   2,591.81x = 5,471,326.23
5. Step 5: Solve for x
   x = 5,471,326.23/2,591.81
6. Step 6: Final answer
   x = 2,111.00