Finding the Fourth Proportional to 1,242.43, 1,711.57 and 1,064.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242.43 : 1,711.57 = 1,064.83 : x
2. Step 2: Convert to fraction form
   1,242.43/1,711.57 = 1,064.83/x
3. Step 3: Cross multiply
   1,242.43x = 1,711.57 × 1,064.83
4. Step 4: Simplify right side
   1,242.43x = 1,822,532.34
5. Step 5: Solve for x
   x = 1,822,532.34/1,242.43
6. Step 6: Final answer
   x = 1,466.91