Finding the Fourth Proportional to 1,864.83, 2,796.89 and 710.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.83 : 2,796.89 = 710.31 : x
2. Step 2: Convert to fraction form
   1,864.83/2,796.89 = 710.31/x
3. Step 3: Cross multiply
   1,864.83x = 2,796.89 × 710.31
4. Step 4: Simplify right side
   1,864.83x = 1,986,655.38
5. Step 5: Solve for x
   x = 1,986,655.38/1,864.83
6. Step 6: Final answer
   x = 1,065.33