Finding the Fourth Proportional to 1,061.07, 1,589.76 and 1,022.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.07 : 1,589.76 = 1,022.79 : x
2. Step 2: Convert to fraction form
   1,061.07/1,589.76 = 1,022.79/x
3. Step 3: Cross multiply
   1,061.07x = 1,589.76 × 1,022.79
4. Step 4: Simplify right side
   1,061.07x = 1,625,996.59
5. Step 5: Solve for x
   x = 1,625,996.59/1,061.07
6. Step 6: Final answer
   x = 1,532.42