Finding the Fourth Proportional to 2,528.73, 3,491.80 and 1,586.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.73 : 3,491.80 = 1,586.10 : x
2. Step 2: Convert to fraction form
   2,528.73/3,491.80 = 1,586.10/x
3. Step 3: Cross multiply
   2,528.73x = 3,491.80 × 1,586.10
4. Step 4: Simplify right side
   2,528.73x = 5,538,343.98
5. Step 5: Solve for x
   x = 5,538,343.98/2,528.73
6. Step 6: Final answer
   x = 2,190.17