Finding the Fourth Proportional to 2,591.47, 3,577.43 and 1,528.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.47 : 3,577.43 = 1,528.88 : x
2. Step 2: Convert to fraction form
   2,591.47/3,577.43 = 1,528.88/x
3. Step 3: Cross multiply
   2,591.47x = 3,577.43 × 1,528.88
4. Step 4: Simplify right side
   2,591.47x = 5,469,461.18
5. Step 5: Solve for x
   x = 5,469,461.18/2,591.47
6. Step 6: Final answer
   x = 2,110.56