Finding the Fourth Proportional to 1,059.79, 1,587.94 and 1,019.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.79 : 1,587.94 = 1,019.29 : x
2. Step 2: Convert to fraction form
   1,059.79/1,587.94 = 1,019.29/x
3. Step 3: Cross multiply
   1,059.79x = 1,587.94 × 1,019.29
4. Step 4: Simplify right side
   1,059.79x = 1,618,568.67
5. Step 5: Solve for x
   x = 1,618,568.67/1,059.79
6. Step 6: Final answer
   x = 1,527.26