Finding the Fourth Proportional to 1,029.59, 1,420.83 and 587.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,029.59 : 1,420.83 = 587.49 : x
2. Step 2: Convert to fraction form
   1,029.59/1,420.83 = 587.49/x
3. Step 3: Cross multiply
   1,029.59x = 1,420.83 × 587.49
4. Step 4: Simplify right side
   1,029.59x = 834,723.42
5. Step 5: Solve for x
   x = 834,723.42/1,029.59
6. Step 6: Final answer
   x = 810.73