Finding the Fourth Proportional to 1,030.82, 1,422.43 and 588.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,030.82 : 1,422.43 = 588.56 : x
2. Step 2: Convert to fraction form
   1,030.82/1,422.43 = 588.56/x
3. Step 3: Cross multiply
   1,030.82x = 1,422.43 × 588.56
4. Step 4: Simplify right side
   1,030.82x = 837,176.82
5. Step 5: Solve for x
   x = 837,176.82/1,030.82
6. Step 6: Final answer
   x = 812.15