Finding the Fourth Proportional to 1,522.76, 2,280.06 and 1,059.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.76 : 2,280.06 = 1,059.56 : x
2. Step 2: Convert to fraction form
   1,522.76/2,280.06 = 1,059.56/x
3. Step 3: Cross multiply
   1,522.76x = 2,280.06 × 1,059.56
4. Step 4: Simplify right side
   1,522.76x = 2,415,860.37
5. Step 5: Solve for x
   x = 2,415,860.37/1,522.76
6. Step 6: Final answer
   x = 1,586.50