Finding the Fourth Proportional to 1,359.89, 2,040.12 and 710.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.89 : 2,040.12 = 710.45 : x
2. Step 2: Convert to fraction form
   1,359.89/2,040.12 = 710.45/x
3. Step 3: Cross multiply
   1,359.89x = 2,040.12 × 710.45
4. Step 4: Simplify right side
   1,359.89x = 1,449,403.25
5. Step 5: Solve for x
   x = 1,449,403.25/1,359.89
6. Step 6: Final answer
   x = 1,065.82